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This Table contains results of our analysis of an "interior" accuracy of CCD positional Numbered Minor Planets observations carried out in indication month of current year. The observatories taken into consideration are given with their MPC codes and instrumental equipment. A number of considered Numbered Minor Planets and their processed positions is given together with a mean error of a single observation for RA and DEC. Only one night observations were used for getting these errors.

A visitor may click required MPC code number (blue color) and see the first 100 Kb information as to detailed test of CCD positions made with this MPC code and sent to the MPC Database. These information tables show the (O-C) values for each observation.

If you find any inaccurate recording, please, send us a letter for correction.

Internal errors August, 2009
--------------------------------------------------------------------------------- MPC Country, Diam., Scale, Number Number Mean errors of code Observa- Focus FOV Cata- of minor of single observation tory (m) log planets positions RA DE --------------------------------------------------------------------------------- " " 012 Belgium, 0.85 45 x 30' 0.9" 2 13 0.313 0.536 Uccle 2.1 GSC 094 Russia, Sime- 1.0 6 x 5' 1" 1 4 0.133 0.068 iz, INASAN 2.2 USNO 106 Slovenia, 0.36 36 x 36' 2.0" 1142 5466 0.310 0.310 Crni vrh 2.4 USNO 113 Germany, 0.50 13 x 10' 2" 19 82 0.527 0.542 Schonbrunn 2.3 USNO 114 Zelenchukskaya 0.3 No data 74 615 0.238 0.214 Station,Russia 2.4 UCAC 118 Slovakia, 0.57 14 x 10' 1.7" 15 75 0.171 0.214 Modra 3.3 USNO 122 France, 0.40 No data 1 4 0.083 0.029 Pises Obs. 1.9 USNO 127 Germany, 0.19 30 x 20' 2.4" 3 20 0.197 0.152 Bornheim 0.8 GSC 130 Italy, 0.4 15 x 10' 1.0" 4 13 0.306 0.467 Lumezzane 1.8 USNO 151 Switzerland, 0.25 24 x 16' 0.9" 7 27 0.424 0.301 Eschenberg 2.0 USNO 160 Italy, Castel- 0.25 14 x 9' 2.2" 13 85 0.182 0.142 martini 1.7 GSC 168 1 25 0.260 0.379 169 Italy, 0.25 19 x 12' 1.3" 4 23 0.366 0.678 Rosignano 1.2 GSC 176 Spain, Obs. 0.20 35 x 24' 2.6" 5 16 0.283 0.346 Astr. de Cons. 1.4 USNO 185 Switzerland, 0.61 23 x 15' 0.9" 22 143 0.189 0.262 jur.-Vicques 2.1 USNO 198 Germany, 0.24 12 x 9' 2.0 40 190 0.228 0.176 Wildberg 2.4 USNO 204 Italy, Schia- 0.60 12 x 12' 1.4" 1 5 0.044 0.047 parelli Obs. 2.8 USNO 212 Obs. La Dehesi- 0.26 No data 4 12 0.582 0.508 lla, Spain 2.6 GSC 215 Germany, 0.25 No data 1 3 0.325 0.091 Buchloe 2.5 USNO 232 Spain, Masqu- 0.25 13 x 9' 2.0" 1 3 0.267 0.322 efa Observ. 1.8 GSC 240 Germany, Her- 0.40 15 x 10' 2.4" 1 3 0.248 0.095 renberg Sternw. 1.6 USNO 291 USA,Kitt Peak, 1.8 390 x 30' 1.0" 779 2832 0.224 0.188 Spacewatch II 4.7 USNO 300 Japan, 0.5 78 x 78' 2.3" 3 12 0.332 0.449 Bisei Center 1.3 ACT 432 Australia, 0.20 No data 14 84 0.400 0.293 Boambee 1.0 ACT 510 Siegen, 0.30 No data 4 21 0.122 0.088 Germany 1.5 USNO 511 France, Haute 1.20 12 x 12' 0.7" 1 4 0.224 0.346 Provence 7.2 USNO 560 Italy, Madon- 0.40 17 x 10' 2.6" 1 3 0.146 0.065 na di Dossob. 2.0 GSC 561 Hungary, 0.60 28 x 19' 1.1" 9 27 0.631 0.423 Piszkesteto 1.8 USNO 585 Kiev comet sta- 0.70 No data 1 6 0.257 0.149 tion, Ukraine 2.8 USNO 587 Italy, 0.50 28 x 28' 1.7" 6 19 0.259 0.425 Sormano 3.0 GSC 619 Spain, 0.51 14 x 11' 2.8" 1 3 0.132 0.050 Sabadell 2.0 GSC 621 Germany, Ber- 0.60 11 x 10' 1.2" 130 969 0.234 0.216 gisch Gladbach 3.1 USNO 628 Germany, 0.20 18 x 12' 2.4" 7 84 0.113 0.209 Mulheim-Ruhr 1.2 GSC 649 USA, 0.31 30 x 30' 1.8" 1 3 0.795 1.006 Powell Obs. 3.8 GSC 673 USA, Table 0.61 22 x 22' 0.3" 28 129 0.035 0.025 Mountain 9.0 ACT 683 USA, Good- 0.36 20 x 20' 2.5" 276 1698 0.707 1.059 ricke-Pigott 4.0 GSC 691 USA, 0.88 390 x 30' 1.1" 7402 30612 0.256 0.252 Spacewatch 4.6 USNO 703 USA, Catalina 0.41 175 x 175' 2.6" 15010 83051 0.548 0.510 Sky Survey 1.2 USNO 704 USA, 1.0 94 x 72' 2.2" 16052 101816 0.537 0.532 Lincoln Lab. 2.2 USNO 735 USA, 0.46 No data 26 119 0.396 0.302 George Obs. USNO 808 Argentina, 0.5 60 x 60' 0.8" 10 37 0.828 0.818 Carl.U.Cesco 3.8 USNO 844 Uruguay, 0.35 28 x 28' 3.3" 2 12 0.184 0.204 Los Molinos 2.2 GSC 900 Japan, 0.25 No data 8 24 0.598 0.688 Moriyama 1.6 GSC 932 USA, John J. 0.40 No data 2 8 0.075 0.054 McCarthy Obs. 2.7 USNO 939 Spain, 0.20 15 x 11' 2.8" 1 3 0.062 0.118 Obs. Rodeno 2.0 USNO 950 UK, var. 3 9 0.333 0.189 La Palma USNO 952 Spain, 0.25 13 x 9' 1.8" 2 9 0.286 0.376 Marxuquera 1.6 GSC A13 Obs. Naef, 0.3 39 x 26' 1.6 18 67 0.330 0.295 Switzerland 1.2 UCAC A16 Tentlingen, 0.30 39 x 26 1.6 1 4 0.252 0.601 Switzerland 1.2 UCAC A17 Guidestar Obs., 0.20 22 x 15' 1.8 7 31 0.190 0.227 Weinheim, Germ. 1.8 UCAC A32 Panker, 0.36 15 x 12' 2.6 2 8 0.173 0.130 Germany 1.9 USNO A44 Altschwendt, 0.30 17 x 13' 1.5 2 6 0.280 0.192 Austria 1.8 USNO A50 Andrushivka, 0.60 23 x 23' 1.4 239 1045 0.423 0.397 Ukraine 4.5 USNO A60 YSTAR-NEOPAT 0.5 108x108' 3 40 138 0.835 0.660 St.,S.Korea 1.0 USNO A71 Stixendorf, 0.20 62 x 47' 2.7 14 56 0.183 0.199 Austria 0.5 UCAC A74 Bergen-Enkh. 0.36 17 x 17' 0.8 2 6 0.216 0.228 Obs., Germany 1.8 UCAC A76 Andromeda 0.20 12 x 9' 1.4 1 3 0.220 0.272 Obs., Hungary 1.3 USNO A77 Obs. Chante- 0.20 27 x 20' 2.1 305 1227 0.438 0.397 Perdrix,France 1.86 USNO A78 Stia, Italy 0.28 40 x 27' 1.1 1 3 0.443 0.376 2.8 UCAC A79 Zvezdno Obsht. 0.25 18 x 14' 1.4 22 85 0.288 0.323 Obs.,Bulgaria 1.2 USNO A81 Balzaretto 0.20 25 x 19' 2.6 2 8 0.150 0.138 Obs., Italy 0.7 USNO A92 Urseanu Obs., 0.23 11 x 8' 1.6 2 6 0.664 0.288 Romania 1.5 USNO A94 Cormons, 0.36 18 x 12' 0.5 1 3 0.127 0.785 Italy 2.9 UCAC-2 A97 Stammersdorf, 0.13 35 x 26' 3.2 2 15 0.230 0.253 Austria 1.0 USNO B01 Taunus Obs., 0.6 62 x 42' 1.9 91 514 0.300 0.316 Germany 2.0 USNO B03 Alter Satz- 0.35 30 x 20' 1.8 1 3 0.070 0.261 berg, Austria 2.6 USNO B06 Montseny Astr. 0.18 No data 2 22 0.295 0.319 Obs., Spain 1.1 USNO B19 Obs., Mataro 0.15 No data 8 39 0.315 0.269 Spain GSC B21 Gaisberg Obs., 0.60 23 x 16' 0.9 19 57 0.306 0.196 Austria 2.0 USNO B26 Obs.des Terres 0.08 No data 4 15 0.807 0.313 Blanches,France B33 Libbiano Obs., 0.5 No data 6 20 0.141 0.133 Italy 4.0 USNO B42 Vitebsk, 0.3 11 x 8' 0.89 1 3 0.335 0.080 Belarus 1.5 USNO B50 Corner Obs., 0.20 12 x 9' 2.2 1 3 0.475 0.464 Germany 0.9 USNO B59 Borken, 0.21 No data 1 4 0.110 0.091 Germany 2.0 USNO B67 Stern. Mirast., 0.90 No data 2 6 0.188 0.212 Switzerland. 6.0 USNO B75 Stazione Astr. 0.20 No data 3 9 0.345 0.138 Betelg.,Italy 2.0 USNO B76 Sternw. Schon- 0.25 22 x 18' 1 1 4 0.220 0.066 feld, Germany 2.5 USNO B81 Caimari, 0.25 11 x 11' 1.3 1 3 0.087 0.032 Spain 2.6 USNO B84 Cyclops Obs., 0.30 No data 3 22 0.250 0.519 The Netherlands 1.1 USNO B88 Bigmuskie Obs., 0.30 No data 6 21 0.121 0.197 Italy 2.4 USNO B89 Obs.Astron. de 0.43 1.70 2 21 0.071 0.118 Tiana, Spain 2.9 CMC B92 5 56 0.086 0.055 B95 Achternholt, 0.20 No data 3 20 0.287 0.066 Germany 2.0 UCAC C00 9 42 0.262 0.240 C01 3 11 0.179 0.141 C03 1 4 0.400 0.062 D20 Zadko Obs., 1.0 23 x 24' 0.7 2 12 0.159 0.130 Australia 4.0 USNO D21 Shenton Park, 0.25 No data 8 24 0.747 0.590 Australia 2.5 USNO D25 Tzec Maun 0.15 No data 27 81 0.417 0.466 Obs., USA 1.1 USNO D29 Purple Mount., 1.04 120 x 120' 1.7 567 2418 0.322 0.313 China 1.8 UCAC D90 RAS Observ., 0.31 No data 6 29 1.014 0.439 Japan 2.9 UCAC E12 Siding Spring 0.5 No data 5080 23308 0.435 0.402 Surv.,Australia UCAC E16 Grove Creek, 0.30 27 x 18' 1.1 1 3 0.318 1.192 Australia 3.0 GSC E20 Marsfield 0.20 No data 9 34 0.271 0.220 0.66 ACT F84 Hibiscus Obs., 0.36 No data 2 6 0.646 0.457 Fr. Polynesia 1.0 UCAC F85 Tiki Obs., 0.41 No data 7 21 0.345 0.366 Fr. Polynesia 3.3 G68 Sierra Stars 0.61 20 x 20' 0.8 15 70 0.368 0.388 Obs., USA 6.0 GSC-ACT G69 Thousand Oaks, 0.30 25 x 25' 1.8 1 3 0.081 0.038 U.S.A. 3.0 UCAC G89 Kachina Obs., 0.36 21 x 21' 1.2 2 9 0.039 0.041 Flagstaff,USA 4.0 UCAC G98 Calvin-Rehob. 0.41 22 x 14' 0.6 34 192 0.285 0.319 Obs., U.S.A. 3.4 USNO H01 Magdalena Rid- 2.4 No data 1 3 0.087 0.031 ge Obs., USA 21.4 USNO H06 New Mexico Ski- 0.25 56 x 37' 2.2 22 66 0.352 0.374 es Obs., Germ. 0.8 UCAC H10 Tzec Maun Obs., var. No data 77 324 0.388 0.380 U.S.A. USNO H11 Rodeo, USA 0.61 20 x 20' 0.6 2 6 0.131 0.074 4.8 USNO H13 1 3 0.260 0.312 H23 Pear Tree, 0.25 No data 2 9 0.164 0.038 USA 1.4 USNO H36 Sandlot Obs., 0.40 31 x 31' 2.0 1 3 2.224 1.972 U.S.A. 2.5 USNO H47 Vicksburg, 0.3 No data 8 45 0.230 0.271 U.S.A. USNO H53 Thompsonville, 0.31 No data 5 166 0.426 0.240 U.S.A. 0.9 UCAC H55 Antares Obs. 0.40 21 x 21' 2.4 2 7 0.084 0.061 U.S.A. f/5.8 USNO I13 Washington 0.25 17 x 17' 2 1 3 0.332 0.120 DC, U.S.A. 5.0 UCAC I15 3 15 0.266 0.250 I19 Tanti, 0.28 No data 2 6 0.283 0.209 Argentina 2.8 UCAC I20 Rio Cuarto, 0.15 22 x 17' 2.1 4 24 0.078 0.103 Argentina 0.8 UCAC I21 El Condor Obs., 0.20 23 x 18' 2.2 2 6 0.127 0.094 Argentina 0.8 UCAC I32 Obs. Beta Orio- 0.25 17 x 12' 1.4 1 3 0.417 0.157 nis 1.4 UCAC J03 3 9 0.144 0.135 J05 Bootes Obs., 0.20 No data 28 101 0.235 0.215 Boecillo, Spain 2.0 CMC J10 Alicante, 0.15 No data 3 9 0.508 0.149 Spain 1.2 CMC J15 Muxagata, 0.10 30 x 30' 2.2 1 6 0.054 0.049 Portugal 0.6 USNO J16 An Carraig Obs.,0.25 21 x 21' 1.2 8 37 0.199 0.184 North. Ireland 2.5 USNO J19 El Maestrat, 0.15 29 x 22 2.3 4 12 0.460 0.727 Spain 0.75 USNO J26 The Spaceguard 0.36 14 x 10' 1.1 21 70 0.226 0.335 Centre, Wales 2.3 USNO J35 Tucci Obs., No data 2 9 0.271 0.626 Martos, Spain USNO J40 Malaga, 0.20 17 x 12' 1.5 2 19 0.093 0.158 Spain 1.0 USNO J51 Obs. Atlante, 0.2 42 x 28' 1.5 17 69 0.163 0.185 Tenerife,Spain 1.8 USNO J53 Posadas, 0.23 No data 1 3 0.056 0.055 Spain 1.2 UCAC J65 Celbridge, 0.2 13 x 10' 1.5 3 9 0.197 0.369 Ireland 1.5 USNO J69 North Obs. 0.40 16 x 12' 1 5 0.259 0.152 England 1.8 USNO J75 OAM Obs., La 0.35 No data 10108 82504 0.353 0.325 Sagra, Spain f/6 UCAC J87 La Canada, 0.30 16 x 16' 1.4 4 12 0.324 0.357 Spain 1.2 USNO J93 Mount Tuffley 0.25 21 x 16' 1.7 2 30 0.179 0.186 Obs., England 1.4 USNO J94 Abbeydale, 0.2 16 x 10' 2 2 6 0.145 0.062 England 2.0 UCAC J95 Great Shefford, 0.30 25 x 25' 1.5 12 36 0.330 0.266 England 1.9 USNO

This Table contains results of our analysis of an "exterior" accuracy of CCD positional Numbered Minor Planets observations carried out in indication month of current year. The observatories taken into consideration are given with their MPC codes and instrumental equipment. A number of considered Numbered Minor Planets and their processed positions is given together with a mean error of a single observation for RA and DEC. Several close night observations were used for getting these errors. A visitor may click required MPC code number (blue color) and see the first 100 Kb information as to detailed test of CCD positions made with this MPC code and sent to the MPC Database. These information tables show the (O-C) values for each observation.

If you find any inaccurate recording, please, send us a letter for correction.

External errors August, 2009
--------------------------------------------------------------------------------- MPC Country, Diam., Scale, Number Number Mean errors of code Observa- Focus FOV Cata- of minor of single observation tory (m) log planets positions RA DE --------------------------------------------------------------------------------- " " 106 Slovenia, 0.36 36 x 36' 2.0" 154 1390 0.291 0.326 Crni vrh 2.4 USNO 113 Germany, 0.50 13 x 10' 2" 4 22 0.629 0.571 Schonbrunn 2.3 USNO 114 Zelenchukskaya 0.3 No data 32 416 0.249 0.222 Station,Russia 2.4 UCAC 118 Slovakia, 0.57 14 x 10' 1.7" 5 43 0.058 0.082 Modra 3.3 USNO 127 Germany, 0.19 30 x 20' 2.4" 3 22 0.386 0.270 Bornheim 0.8 GSC 160 Italy, Castel- 0.25 14 x 9' 2.2" 11 79 0.958 0.508 martini 1.7 GSC 168 1 25 0.293 0.393 169 Italy, 0.25 19 x 12' 1.3" 2 17 0.349 0.386 Rosignano 1.2 GSC 185 Switzerland, 0.61 23 x 15' 0.9" 1 4 0.179 0.115 jur.-Vicques 2.1 USNO 198 Germany, 0.24 12 x 9' 2.0 8 57 0.270 0.282 Wildberg 2.4 USNO 291 USA,Kitt Peak, 1.8 390 x 30' 1.0" 112 711 0.286 0.246 Spacewatch II 4.7 USNO 415 Kambah, 0.36 14 x 10' 1.1" 1 4 0.162 0.213 Australia 1.6 UCAC 432 Australia, 0.20 No data 15 107 0.430 0.315 Boambee 1.0 ACT 510 Siegen, 0.30 No data 1 12 0.103 0.067 Germany 1.5 USNO 587 Italy, 0.50 28 x 28' 1.7" 1 4 0.460 0.434 Sormano 3.0 GSC 621 Germany, Ber- 0.60 11 x 10' 1.2" 77 781 0.259 0.238 gisch Gladbach 3.1 USNO 628 Germany, 0.20 18 x 12' 2.4" 5 75 0.141 0.206 Mulheim-Ruhr 1.2 GSC 673 USA, Table 0.61 22 x 22' 0.3" 41 282 0.085 0.095 Mountain 9.0 ACT 683 USA, Good- 0.36 20 x 20' 2.5" 169 1553 0.949 1.099 ricke-Pigott 4.0 GSC 689 USA, USNO 1.55 No data 70 291 0.178 0.193 Flagstaff ACT 691 USA, 0.88 390 x 30' 1.1" 2310 15229 0.269 0.255 Spacewatch 4.6 USNO 703 USA, Catalina 0.41 175 x 175' 2.6" 4718 41468 0.604 0.565 Sky Survey 1.2 USNO 704 USA, 1.0 94 x 72' 2.2" 5752 58803 0.584 0.581 Lincoln Lab. 2.2 USNO 735 USA, 0.46 No data 5 42 0.361 0.291 George Obs. USNO 808 Argentina, 0.5 60 x 60' 0.8" 4 25 0.910 1.047 Carl.U.Cesco 3.8 USNO 900 Japan, 0.25 No data 9 42 0.548 0.490 Moriyama 1.6 GSC A13 Obs. Naef, 0.3 39 x 26' 1.6 22 104 0.328 0.393 Switzerland 1.2 UCAC A17 Guidestar Obs., 0.20 22 x 15' 1.8 2 16 0.297 0.221 Weinheim, Germ. 1.8 UCAC A50 Andrushivka, 0.60 23 x 23' 1.4 75 498 0.484 0.442 Ukraine 4.5 USNO A60 YSTAR-NEOPAT 0.5 108x108' 3 7 41 0.879 0.599 St.,S.Korea 1.0 USNO A77 Obs. Chante- 0.20 27 x 20' 2.1 81 554 0.455 0.401 Perdrix,France 1.86 USNO A79 Zvezdno Obsht. 0.25 18 x 14' 1.4 8 59 0.397 0.394 Obs.,Bulgaria 1.2 USNO A97 Stammersdorf, 0.13 35 x 26' 3.2 1 9 1.237 0.717 Austria 1.0 USNO B01 Taunus Obs., 0.6 62 x 42' 1.9 24 259 0.303 0.340 Germany 2.0 USNO B19 Obs., Mataro 0.15 No data 5 30 0.278 0.196 Spain GSC B26 Obs.des Terres 0.08 No data 2 11 0.921 0.353 Blanches,France B75 Stazione Astr. 0.20 No data 2 8 0.399 0.312 Betelg.,Italy 2.0 USNO B88 Bigmuskie Obs., 0.30 No data 1 6 0.265 0.345 Italy 2.4 USNO B89 Obs.Astron. de 0.43 1.70 2 21 0.141 0.199 Tiana, Spain 2.9 CMC C00 6 39 0.292 0.250 C01 5 23 0.364 0.543 D90 RAS Observ., 0.31 No data 2 21 0.448 0.083 Japan 2.9 UCAC E12 Siding Spring 0.5 No data 889 7053 0.398 0.363 Surv.,Australia UCAC E16 Grove Creek, 0.30 27 x 18' 1.1 1 4 0.215 0.135 Australia 3.0 GSC E20 Marsfield 0.20 No data 1 6 0.278 0.179 0.66 ACT G68 Sierra Stars 0.61 20 x 20' 0.8 5 40 0.434 0.325 Obs., USA 6.0 GSC-ACT G89 Kachina Obs., 0.36 21 x 21' 1.2 1 6 0.051 0.050 Flagstaff,USA 4.0 UCAC G98 Calvin-Rehob. 0.41 22 x 14' 0.6 8 82 0.319 0.322 Obs., U.S.A. 3.4 USNO H06 New Mexico Ski- 0.25 56 x 37' 2.2 1 4 0.325 0.812 es Obs., Germ. 0.8 UCAC H10 Tzec Maun Obs., var. No data 15 119 0.346 0.399 U.S.A. USNO H23 Pear Tree, 0.25 No data 1 6 0.110 0.053 USA 1.4 USNO H47 Vicksburg, 0.3 No data 3 28 0.259 0.253 U.S.A. USNO H53 Thompsonville, 0.31 No data 4 160 0.492 0.265 U.S.A. 0.9 UCAC I13 Washington 0.25 17 x 17' 2 2 9 0.291 0.210 DC, U.S.A. 5.0 UCAC I15 2 12 0.275 0.226 I20 Rio Cuarto, 0.15 22 x 17' 2.1 3 21 0.207 0.117 Argentina 0.8 UCAC I21 El Condor Obs., 0.20 23 x 18' 2.2 5 25 0.274 0.395 Argentina 0.8 UCAC J03 3 15 0.185 0.162 J05 Bootes Obs., 0.20 No data 5 33 0.236 0.315 Boecillo, Spain 2.0 CMC J14 La Corte, Cana- 0.11 42 x 31' 3.8 16 64 0.256 0.276 ry Isl., Spain 0.4 USNO J15 Muxagata, 0.10 30 x 30' 2.2 1 6 0.069 0.044 Portugal 0.6 USNO J16 An Carraig Obs.,0.25 21 x 21' 1.2 1 5 0.170 0.316 North. Ireland 2.5 USNO J26 The Spaceguard 0.36 14 x 10' 1.1 1 6 0.260 0.278 Centre, Wales 2.3 USNO J35 Tucci Obs., No data 1 6 0.255 0.707 Martos, Spain USNO J40 Malaga, 0.20 17 x 12' 1.5 1 16 0.113 0.173 Spain 1.0 USNO J51 Obs. Atlante, 0.2 42 x 28' 1.5 2 24 0.101 0.113 Tenerife,Spain 1.8 USNO J75 OAM Obs., La 0.35 No data 6277 70457 0.383 0.354 Sagra, Spain f/6 UCAC J93 Mount Tuffley 0.25 21 x 16' 1.7 1 15 0.234 0.133 Obs., England 1.4 USNO