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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 May, 2011
--------------------------------------------------------------------------------- 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 --------------------------------------------------------------------------------- " " 069 5 19 0.663 0.806 104 Italy, San 0.40 21 x 21' 2.5" 10 30 0.454 0.369 Marccello 2.0 GSC 106 Slovenia, 0.36 36 x 36' 2.0" 583 2452 0.331 0.347 Crni vrh 2.4 USNO 113 Germany, 0.50 13 x 10' 2" 6 22 0.438 0.301 Schonbrunn 2.3 USNO 114 6 36 0.160 0.178 118 Slovakia, 0.57 14 x 10' 1.7" 2 7 0.184 0.073 Modra 3.3 USNO 130 Italy, 0.4 15 x 10' 1.0" 3 12 0.374 0.227 Lumezzane 1.8 USNO 168 4 21 0.262 0.286 198 Germany, 0.24 12 x 9' 2.0 2 9 0.055 0.100 Wildberg 2.4 USNO 204 Italy, Schia- 0.60 12 x 12' 1.4" 3 9 0.040 0.066 parelli Obs. 2.8 USNO 215 Germany, 0.25 No data 1 3 0.095 0.040 Buchloe 2.5 USNO 233 Italy, Sauro 0.25 15 x 10' 2.3" 3 14 0.298 0.324 Donati Ast.Obs. 1.6 USNO 290 USA, Mt. 1.8 No data 1 4 0.500 0.215 Graham-VATT 1.8 USNO 291 USA,Kitt Peak, 1.8 390 x 30' 1.0" 536 2112 0.217 0.173 Spacewatch II 4.7 USNO 300 Japan, 0.5 78 x 78' 2.3" 2 18 0.630 0.342 Bisei Center 1.3 ACT 309 ESO, 8.2 No data 1 18 0.096 0.063 Cerro Paranal USNO 379 Japan, Hama 0.25 17 x 13' 2.1" 1 5 0.084 0.236 -matsu-Yuto 1.25 ACT 448 USA, Desert 0.30 21 x 21' 2.4" 11 41 0.455 0.464 Moon Observat. 2.0 USNO 461 Hungary, JATE 0.60 28 x 19' 1.1" 1 3 0.055 0.076 Asteroid Surv. 1.8 USNO 510 3 13 0.237 0.219 557 Czech Rep., 0.65 20 x 13' 1.6" 4 94 0.157 0.119 Ondrejov 2.3 USNO 585 1 76 0.180 0.046 621 Germany, Ber- 0.60 11 x 10' 1.2" 35 145 0.227 0.215 gisch Gladbach 3.1 USNO 628 Germany, 0.20 18 x 12' 2.4" 3 21 0.126 0.111 Mulheim-Ruhr 1.2 GSC 639 Germany, 0.35 14 x 11' 2.3" 2 7 0.254 0.156 Dresden 1.5 GSC 673 USA, Table 0.61 9 x 9' 0.5" 42 153 0.034 0.040 Mountain 9.8 ACT 682 USA, 0.25 23 x 15' 1.8" 1 3 0.135 0.146 Kanab 1.0 GSC 691 USA, 0.88 390 x 30' 1.1" 2302 15432 0.292 0.289 Spacewatch 4.6 USNO 703 USA, Catalina 0.41 175 x 175' 2.6" 11298 61284 0.563 0.523 Sky Survey 1.2 USNO 704 USA, 1.0 94 x 72' 2.2" 13943 104546 0.506 0.523 Lincoln Lab. 2.2 USNO 807 USA, Cerro 4.0 37 x 37' 0.3" 2 8 0.390 0.191 Tololo 14.4 USNO 844 Uruguay, 0.35 28 x 28' 3.3" 1 4 0.778 0.624 Los Molinos 2.2 GSC 850 USA, Cordell- 0.30 No data 1 3 0.040 0.105 Lorenz Obs. 1.7 GSC 926 USA, Tenagra 0.50 No data 3310 11583 0.264 0.269 II Observat. 5.0 GSC A06 Mataro, 0.25 No data 2 6 0.183 0.201 Spain 1.6 UCAC A13 11 36 0.166 0.185 A14 Les Engaroui- 0.21 No data 186 558 0.387 0.344 nes Obs.,France 0.8 ACT A17 Guidestar Obs., 0.20 No data 1 3 0.118 0.095 Weinheim, Germ. 1.8 UCAC A24 New Millennium 0.36 12 x 12' 1.4 190 1396 0.244 0.228 Obs., Italy 3.9 GSC A37 Mueggelheim, 0.2 11 x 7' 1.8 1 3 0.098 0.032 Germany 2.0 USNO A50 Andrushivka, 0.60 23 x 23' 1.4 209 780 0.318 0.298 Ukraine 4.5 USNO A71 5 27 0.167 0.156 A77 114 422 0.469 0.336 A92 1 3 0.325 0.405 B38 Santa Mama 0.30 No data 1 4 0.136 0.087 Italy 3.0 UCAC B92 4 92 0.121 0.114 C01 Lohrmann-Obs. 0.6 No data 10 341 0.203 0.106 Germany 2.4 UCAC C63 1 4 0.400 0.111 C64 6 38 0.365 0.220 C65 3 18 0.066 0.062 C66 2 15 0.450 0.249 D29 Purple Mount. 1.0 2x2 deg 1.7” 2184 10337 0.386 0.370 Obs., China D35 Lulin Obs., 1.0 12 x 11 0.5” 1 3 0.194 0.648 Taiwan 8.0 UCAC D96 Tzec Maun Obs., 0.18 No date 14 45 0.278 0.387 USA F/3 NOMAD E11 Frog Rock Obs. 0.32 No data 1 3 0.049 0.062 Australia UCAC E12 4124 18077 0.461 0.427 E23 Arcadia 0.35 No data 1 4 0.517 0.237 Australia 2.3 USNO E89 1 8 0.118 0.059 F51 Pan-STARRS 1, 1.8 No data 4355 17615 0.079 0.075 USA 2MASS F65 Haleakala-Faul. 2.0 5 x 5' 0.14” 4 26 0.140 0.078 Wales 20.0 USNO G51 1 5 0.427 0.339 G69 Thousand 0.30 25 x 25' 1.8” 10 84 0.411 0.208 Oaks, U.S.A. 2.9 UCAC G89 Kachina Obs. 0.36 21 x 21' 1.2” 1 6 0.054 0.034 USA 4.0 UCAC G92 Jarnac Obs. 0.35 No data 247 1106 0.536 0.497 U.S.A. 0.70 USNO G96 Mt. Lemmon 0.6 2.8x2.8 deg 13180 65985 0.269 0.199 Surv., USA 1.1 UCAC G98 Calvin-Rehoboth 0.41 22 x 14' 0.6 2 20 0.336 0.281 Obs., USA 3.4 USNO H06 New Mexico Ski- 0.30 No data 8 28 0.153 0.278 es Obs., Germ. 3.5 UCAC H10 Tzec Maun Obs. 0.36 No data [ 15 69 0.348 0.208 U.S.A. 1.2 USNO H15 ISON-NM Obs., 0.45 No data 1391 5586 0.330 0.361 Russia 1.2 UCAC H18 2 6 0.318 0.167 H23 Pear Tree 0.25 No data 27 93 0.229 0.265 Obs., U.S.A. 1.3 USNO H26 Doc Greiner 0.40 No data 4 14 0.626 0.530 Obs., USA 3.2 UCAC H45 Petit Jean 0.41 No data 1 5 0.032 0.047 USA 1.3 UCAC H47 Vicksburg 0.3 No data 2 14 0.297 0.176 USA USNO H85 Silver Spring 0.45 No data 1 3 0.690 0.320 USA 3.5 UCAC I28 1 3 0.356 0.223 I40 3 711 0.150 0.084 I79 2 8 0.561 0.446 I80 1 3 0.572 0.221 I93 St Pardon de 0.40 No date 3 12 0.259 0.155 Conques, France 2.0 NOMAD J04 ESA Optical 1.0 No data 367 1101 0.253 0.252 St., Holland 4.4 UCAC J19 El Maestrat 0.15 29 x 23' 2.3” 4 38 0.214 0.239 Spain 0.75 USNO J26 The Space- 0.36 14 x 10' 1.1 [ 15 46 0.433 0.382 guard, Wales 2.3 USNO J93 Mount Tuffley 0.25 21 x 16' 1.7 1 3 0.006 0.084 Obs., England 1.4 USNO J95 Great Shefford, 0.30 25 x 25' 1.5 3 9 0.320 0.083 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 May, 2011
--------------------------------------------------------------------------------- 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 --------------------------------------------------------------------------------- " " 069 3 15 0.782 1.155 106 Slovenia, 0.36 36 x 36' 2.0" 22 176 0.314 0.342 Crni vrh 2.4 USNO 114 1 11 0.087 0.057 168 1 8 0.242 0.273 233 Italy, Sauro 0.25 15 x 10' 2.3" 1 6 0.112 0.158 Donati Ast.Obs. 1.6 USNO 291 USA,Kitt Peak, 1.8 390 x 30' 1.0" 61 444 0.197 0.131 Spacewatch II 4.7 USNO 300 Japan, 0.5 78 x 78' 2.3" 1 10 0.461 0.329 Bisei Center 1.3 ACT 448 USA, Desert 0.30 21 x 21' 2.4" 2 10 0.581 0.699 Moon Observat. 2.0 USNO 557 Czech Rep., 0.65 20 x 13' 1.6" 4 96 0.162 0.172 Ondrejov 2.3 USNO 621 Germany, Ber- 0.60 11 x 10' 1.2" 11 69 0.233 0.185 gisch Gladbach 3.1 USNO 628 Germany, 0.20 18 x 12' 2.4" 2 24 0.381 0.557 Mulheim-Ruhr 1.2 GSC 673 USA, Table 0.61 9 x 9' 0.5" 23 139 0.113 0.085 Mountain 9.8 ACT 689 USA, USNO 1.55 No data 30 148 0.169 0.143 Flagstaff ACT 691 USA, 0.88 390 x 30' 1.1" 1534 13162 0.302 0.302 Spacewatch 4.6 USNO 703 USA, Catalina 0.41 175 x 175' 2.6" 3582 30701 0.571 0.570 Sky Survey 1.2 USNO 704 USA, 1.0 94 x 72' 2.2" 5988 69790 0.574 0.581 Lincoln Lab. 2.2 USNO 926 USA, Tenagra 0.50 No data 433 2940 0.259 0.261 II Observat. 5.0 GSC A13 4 24 0.116 0.223 A24 New Millennium 0.36 12 x 12' 1.4 120 1298 0.280 0.254 Obs., Italy 3.9 GSC A50 Andrushivka, 0.60 23 x 23' 1.4 5 42 0.267 0.157 Ukraine 4.5 USNO A77 20 132 0.388 0.287 B92 3 82 0.212 0.204 C01 Lohrmann-Obs. 0.6 No data 5 323 0.335 0.164 Germany 2.4 UCAC C43 4 14 1.018 1.420 C63 2 10 0.319 0.149 C64 4 28 0.458 0.295 C65 3 18 0.084 0.067 C66 2 15 0.581 0.247 C69 2 8 0.449 0.233 D29 Purple Mount. 1.0 2x2 deg 1.7” 283 2492 0.383 0.385 Obs., China D96 Tzec Maun Obs., 0.18 No date 1 6 0.146 0.192 USA F/3 NOMAD E12 654 4928 0.429 0.405 E89 1 8 0.132 0.061 F51 Pan-STARRS 1, 1.8 No data 909 5736 0.116 0.105 USA 2MASS G69 Thousand 0.30 25 x 25' 1.8” 3 61 0.454 0.429 Oaks, U.S.A. 2.9 UCAC G89 Kachina Obs. 0.36 21 x 21' 1.2” 1 6 0.055 0.032 USA 4.0 UCAC G92 Jarnac Obs. 0.35 No data 17 143 0.536 0.480 U.S.A. 0.70 USNO G96 Mt. Lemmon 0.6 2.8x2.8 deg 2730 24190 0.279 0.216 Surv., USA 1.1 UCAC G98 Calvin-Rehoboth 0.41 22 x 14' 0.6 1 10 0.415 0.321 Obs., USA 3.4 USNO H10 Tzec Maun Obs. 0.36 No data [ 4 28 0.165 0.149 U.S.A. 1.2 USNO H15 ISON-NM Obs., 0.45 No data 6 48 0.478 0.558 Russia 1.2 UCAC H23 Pear Tree 0.25 No data 4 24 0.367 0.386 Obs., U.S.A. 1.3 USNO H47 Vicksburg 0.3 No data 1 11 0.222 0.163 USA USNO I40 1 33 0.405 0.637 I80 3 13 0.320 0.229 J14 La Corte 0.11 No data 1 4 0.180 0.213 Spain 0.45