(101) Helena (101) Helena(101) Helena Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 (M-c) Bowell M 348.26610 (2000.0) P Q n 0.23745272 Peri. 346.71112 +0.86929559 +0.49174621 a 2.5827634 Node 343.54694 -0.43579100 +0.71462310 e 0.1406500 Incl. 10.19027 -0.23326247 +0.49749321 P 4.15 H 8.33 G 0.35 From 117 observations at 25 oppositions, 1871-1991, mean residual 0".84.An explanation of the orbital elements is available.
These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2001 08 19 01 07.08 +11 27.5 1.503 2.253 126.1 21.3 11.8 2001 08 24 01 06.41 +11 57.5 1.462 2.257 130.9 19.8 11.7 2001 08 29 01 04.96 +12 23.8 1.425 2.261 135.8 18.2 11.6 2001 09 03 01 02.75 +12 46.1 1.391 2.265 140.9 16.3 11.5 2001 09 08 00 59.81 +13 04.1 1.362 2.269 146.1 14.3 11.4 2001 09 13 00 56.19 +13 17.6 1.338 2.274 151.4 12.2 11.3 2001 09 18 00 51.98 +13 26.5 1.320 2.278 156.8 10.0 11.2 2001 09 23 00 47.30 +13 30.8 1.307 2.283 162.1 7.7 11.1 2001 09 28 00 42.30 +13 30.8 1.300 2.288 167.0 5.7 11.0 2001 10 03 00 37.16 +13 26.9 1.300 2.293 170.4 4.2 11.0 2001 10 08 00 32.03 +13 19.7 1.306 2.298 170.7 4.0 11.0 2001 10 13 00 27.10 +13 09.8 1.319 2.303 167.5 5.4 11.1 2001 10 18 00 22.52 +12 58.3 1.338 2.309 162.8 7.3 11.2 2001 10 23 00 18.45 +12 46.0 1.363 2.314 157.5 9.5 11.3 2001 10 28 00 14.99 +12 33.9 1.395 2.320 152.1 11.6 11.4 2001 11 02 00 12.24 +12 22.9 1.432 2.326 146.7 13.5 11.5 2001 11 07 00 10.23 +12 13.6 1.473 2.332 141.5 15.4 11.7 2001 11 12 00 08.99 +12 06.6 1.520 2.338 136.3 17.0 11.8 2001 11 17 00 08.53 +12 02.4 1.571 2.344 131.3 18.5 11.9
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