"Pseudo-MPEC" for Neptune I
Created Mon Feb 02 19:28:25 2004 using Find_Orb
Astrometry
Observing stations
Orbital elements
Residuals
Ephemeris
Astrometry:
N001S C1999 05 31.47131520 25 55.238-18 55 32.04 689
N001S C1999 06 01.46854920 25 51.137-18 55 51.95 689
N001S C1999 06 07.45215620 25 29.605-18 57 07.60 689
N001S C1999 06 08.44890920 25 24.619-18 57 16.65 689
N001S C1999 06 09.44613220 25 20.572-18 57 17.83 689
N001S C1999 06 10.44359020 25 17.445-18 57 24.66 689
N001S C1999 06 11.44081020 25 14.193-18 57 44.99 689
N001S C1999 06 12.43850220 25 09.770-18 58 13.56 689
N001S C1999 06 13.43524920 25 04.251-18 58 36.20 689
N001S C1999 06 17.42364020 24 46.697-18 59 22.95 689
N001S C1999 06 18.42156120 24 41.564-18 59 53.19 689
N001S C1999 06 19.41818320 24 35.463-19 00 16.09 689
N001S C1999 06 20.41574920 24 29.510-19 00 26.24 689
N001S C1999 06 21.41296520 24 24.597-19 00 31.20 689
N001S C1999 06 22.40993220 24 20.499-19 00 44.55 689
N001S C1999 06 23.40725820 24 16.005-19 01 11.49 689
N001S C1999 06 26.39899720 23 57.306-19 02 16.77 689
N001S C1999 06 27.39561120 23 52.072-19 02 23.45 689
N001S C1999 06 28.39293320 23 47.581-19 02 39.77 689
N001S C1999 06 29.39084520 23 42.561-19 03 09.38 689
N001S C1999 07 05.37381520 23 06.789-19 05 14.97 689
N001S C1999 07 07.36833020 22 52.638-19 06 11.24 689
N001S C1999 07 20.33233820 21 27.932-19 10 48.49 689
N001S C1999 07 21.32870420 21 22.113-19 11 01.17 689
N001S C1999 07 22.43379620 21 15.963-19 11 30.10 673
N001S C1999 07 22.43675920 21 15.936-19 11 30.32 673
N001S C1999 07 22.45093820 21 15.853-19 11 30.80 673
N001S C1999 07 23.32367920 21 10.203-19 12 02.05 689
N001S C1999 08 01.29805920 20 07.944-19 15 21.07 689
N001S C1999 08 03.29232620 19 56.771-19 16 03.86 689
N001S C1999 08 07.28122020 19 28.476-19 17 35.40 689
N001S C1999 08 08.27888820 19 23.059-19 17 51.07 689
N001S C1999 08 11.27047520 19 03.481-19 19 23.03 689
N001S C1999 08 13.26498520 18 50.057-19 19 46.14 689
N001S C1999 08 14.26099920 18 44.928-19 20 02.57 689
N001S C1999 08 16.25598620 18 33.118-19 21 05.83 689
N001S C1999 08 18.25038420 18 18.932-19 21 43.90 689
N001S C1999 08 21.24151420 18 03.374-19 22 37.60 689
N001S C1999 08 27.22521220 17 29.413-19 24 35.83 689
N001S C1999 09 02.20787620 16 58.165-19 26 25.04 689
N001S C1999 09 04.20242120 16 46.602-19 27 10.76 689
N001S C1999 09 05.19963720 16 41.347-19 27 15.69 689
N001S C1999 09 06.19685220 16 37.388-19 27 20.87 689
N001S C1999 09 07.19430720 16 34.028-19 27 36.89 689
N001S C1999 09 08.19223520 16 30.043-19 28 04.13 689
N001S C1999 09 13.17786920 16 08.981-19 29 05.90 689
N001S C1999 09 16.16954920 15 56.193-19 30 04.60 689
N001S C1999 09 18.16400820 15 49.958-19 30 06.97 689
N001S C1999 09 25.14466020 15 30.851-19 31 25.18 689
N001S C1999 09 26.14213920 15 28.493-19 31 46.98 689
N001S C1999 09 28.13674420 15 21.996-19 32 05.70 689
N001S C1999 10 01.12789420 15 18.305-19 32 14.05 689
N001S C1999 10 02.12478920 15 16.584-19 32 33.49 689
N001S C1999 10 04.12036020 15 11.644-19 32 44.71 689
N001S C1999 10 05.11654920 15 10.517-19 32 36.95 689
N001S C1999 10 06.11380620 15 10.494-19 32 35.87 689
N001S C1999 10 11.10129520 15 05.916-19 32 58.31 689
N001S C1999 10 12.09737620 15 06.721-19 32 56.14 689
N001S C1999 10 13.09582920 15 07.367-19 33 06.42 689
N001S C1999 10 16.08764020 15 05.434-19 33 16.04 689
N001S C1999 10 22.07047820 15 09.795-19 33 07.92 689
N001S C1999 10 23.06776020 15 11.537-19 32 53.50 689
N001S C1999 10 24.06504520 15 14.081-19 32 48.85 689
N001S C1999 10 25.06280720 15 16.167-19 32 55.60 689
N001S C2001 06 20.42475720 42 54.361-18 01 57.66 673
N001S C2001 06 20.43621520 42 54.316-18 01 57.95 673
N001S C2001 06 20.44489620 42 54.281-18 01 58.14 673
N001S C2001 07 15.35903920 40 33.850-18 11 24.94 673
N001S C2001 07 15.36701420 40 33.794-18 11 25.26 673
N001S C2001 08 10.20990720 37 41.998-18 22 17.15 673
N001S C2001 08 10.21360020 37 41.973-18 22 17.20 673
N001S C2001 08 10.21731520 37 41.948-18 22 17.21 673
N001S C2001 08 11.28593720 37 35.588-18 22 30.35 673
N001S C2001 08 11.29905120 37 35.515-18 22 30.52 673
N001S C2001 08 11.31004620 37 35.454-18 22 30.72 673
N001S C2001 08 12.25140020 37 30.507-18 22 52.37 673
N001S C2001 08 12.26285920 37 30.442-18 22 52.75 673
N001S C2001 08 12.27223420 37 30.392-18 22 53.01 673
N001S C2001 08 13.27100720 37 24.542-18 23 28.31 673
N001S C2001 08 13.28427120 37 24.457-18 23 28.87 673
N001S C2001 08 28.26038220 35 51.366-18 29 14.96 673
N001S C2001 08 28.26854220 35 51.321-18 29 15.03 673
N001S C2001 08 28.27546320 35 51.287-18 29 15.08 673
N001S C2002 06 22.40567920 51 52.659-17 31 21.50 673
N001S C2002 06 22.43154720 51 52.505-17 31 21.96 673
N001S C2002 07 14.31354320 49 53.789-17 39 23.30 673
N001S C2002 07 14.31849020 49 53.921-17 39 24.26 673
N001S C2002 07 14.32941320 49 53.689-17 39 23.95 673
N001S C2002 07 20.37967620 49 15.568-17 42 01.93 673
N001S C2002 07 20.38629120 49 15.521-17 42 02.24 673
N001S C2002 07 21.37507920 49 08.311-17 42 38.46 673
N001S C2002 07 21.38172420 49 08.260-17 42 38.64 673
N001S C2003 09 20.18661820 52 20.528-17 34 25.84 673
N001S C2003 09 20.19497620 52 20.502-17 34 25.90 673
N001S C2003 09 21.20736520 52 17.640-17 34 41.63 673
N001S C2003 09 21.21613720 52 17.613-17 34 41.81 673
N001S C2003 10 10.14584820 51 24.235-17 38 46.51 673
N001S C2003 10 10.15063420 51 24.223-17 38 46.62 673
N001S C2003 10 11.13773220 51 21.690-17 39 02.72 673
N001S C2003 10 11.14339420 51 21.672-17 39 02.79 673
N001S C2003 10 12.16745620 51 19.115-17 39 05.29 673
N001S C2003 10 12.17349320 51 19.100-17 39 05.29 673
N001S C2003 11 07.15198320 51 29.168-17 38 27.91 673
N001S C2003 11 07.15919420 51 29.193-17 38 27.91 673
N001S C2003 11 08.10333520 51 31.769-17 38 29.86 673
N001S C2003 11 08.11010420 51 31.784-17 38 29.89 673
Station data:
(673) Table Mountain Observatory, Wrightwood (N34.3816 W117.6809). Observers
G. L. Grasdalen, R. C. Dumas, A. M. Sullivan, S. B. Santos, W. M. Owen Jr.,
M. O. Balancio, C. A. Vazquez. Measurers W. M. Owen Jr., R. C. Dumas.
0.61-m f/16 reflector + CCD.
(689) U.S. Naval Observatory, Flagstaff (N35.1840 W111.7399).
Orbital elements:
Neptune I
Perineptune 2001 Aug 12.806943 TT
Epoch 2001 Aug 10.0 TT = JDT 2452131.5 Find_Orb
M 188.06578 (2000.0) P Q
n 61.25318329 Peri. 174.44529 0.75981472 0.47153060
a 0.0023715 Node 216.68911 0.56392500 -0.13540135
e 0.0037594 Incl. 131.48358 0.32352768 -0.87139277
P 5.88d q 0.0023626
From 105 observations 1999 May. 31-2003 Nov. 8; RMS error 0.260 arcseconds
Residuals in arcseconds:
990531 689 .18- .20- 990818 689 .16+ .02+ 010811 673 .15+ .11+
990601 689 .03+ .31+ 990821 689 .28- .03- 010811 673 .13+ .16+
990607 689 .20+ .11+ 990827 689 .33- .05+ 010811 673 .12+ .14+
990608 689 .25+ .12- 990902 689 .29- .13+ 010812 673 .10- .04+
990609 689 .33+ .08- 990904 689 .35+ .18- 010812 673 .14- .00
990610 689 .02+ .02+ 990905 689 .23+ .07+ 010812 673 .12- .03+
990611 689 .26- .26+ 990906 689 .12- .12- 010813 673 .29- .03+
990612 689 .23- .05+ 990907 689 .39- .14+ 010813 673 .26- .01-
990613 689 .01- .12- 990908 689 .21- .05+ 010828 673 .24+ .06+
990617 689 .30- .16- 990913 689 .33- .07- 010828 673 .22+ .05+
990618 689 .45- .10- 990916 689 .30+ .27- 010828 673 .25+ .05+
990619 689 .03+ .03+ 990918 689 .06- .16+ 020622 673 .17+ .07-
990620 689 .41+ .02- 990925 689 .26- .04- 020622 673 .16+ .06-
990621 689 .19+ .02+ 990926 689 .15- .08- 020714 673 .30- .11-
990622 689 .01+ .05- 990928 689 .25+ .11- 020714 673( 2.0+ .87-)
990623 689 .34- .17- 991001 689 .30- .12- 020714 673 .27- .12-
990626 689 .27+ .09+ 991002 689 .06- .20- 020720 673 .22- .10-
990627 689 .00 .18+ 991004 689 .34+ .18- 020720 673 .24- .15-
990628 689 .04+ .06+ 991005 689 .08+ .06+ 020721 673 .08+ .05-
990629 689 .23- .12- 991006 689 .04- .28+ 020721 673 .09+ .02-
990705 689 .11- .03+ 991011 689 .50+ .08- 030920 673 .17+ .01+
990707 689 .28+ .01+ 991012 689 .02- .02- 030920 673 .16+ .02+
990720 689 .40+ .17- 991013 689 .25- .07- 030921 673 .17- .04-
990721 689 .12- .07- 991016 689 .32+ .05- 030921 673 .17- .02-
990722 673 .35- .09- 991022 689 .18+ .08- 031010 673 .18- .03+
990722 673 .48- .21- 991023 689 .11+ .05- 031010 673 .19- .02+
990722 673 .45- .22- 991024 689 .17+ .03- 031011 673 .26+ .04+
990723 689 .21- .00 991025 689 .11- .01- 031011 673 .24+ .03+
990801 689 .16+ .01- 010620 673 .16- .04- 031012 673 .38+ .01+
990803 689 .00 .12+ 010620 673 .18- .04- 031012 673 .35+ .02-
990807 689 .16+ .09+ 010620 673 .21- .02- 031107 673 .24- .03-
990808 689 .02+ .05+ 010715 673 .09- .03- 031107 673 .20- .05-
990811 689 .33+ .12+ 010715 673 .07- .05- 031108 673 .28- .07+
990813 689 .14+ .18+ 010810 673 .27+ .05+ 031108 673 .27- .08+
990814 689 .02- .10- 010810 673 .26+ .04+
990816 689 .32- .13+ 010810 673 .26+ .08+
Ephemerides:
Da Mon Year RA Dec delta r elong mag
-- --- ---- ------------ ------------ ------ ------ ----- ---
2 Feb 2004 21 01 06.041 -16 59 45.54 31.058 30.073 0.0
3 Feb 2004 21 01 16.245 -16 59 01.30 31.058 30.073 1.3
4 Feb 2004 21 01 26.181 -16 58 30.22 31.059 30.074 2.1
5 Feb 2004 21 01 35.021 -16 58 05.09 31.060 30.076 2.6
6 Feb 2004 21 01 43.084 -16 57 32.42 31.059 30.075 3.3
7 Feb 2004 21 01 51.483 -16 56 46.74 31.057 30.074 4.3
8 Feb 2004 21 02 00.966 -16 55 55.96 31.054 30.072 5.4
9 Feb 2004 21 02 11.156 -16 55 13.27 31.053 30.073 6.6
10 Feb 2004 21 02 20.923 -16 54 43.66 31.052 30.075 7.5
11 Feb 2004 21 02 29.555 -16 54 18.44 31.051 30.076 8.4
12 Feb 2004 21 02 37.514 -16 53 44.38 31.049 30.075 9.3
13 Feb 2004 21 02 45.936 -16 52 57.64 31.044 30.073 10.3
14 Feb 2004 21 02 55.447 -16 52 07.45 31.040 30.072 11.3
15 Feb 2004 21 03 05.533 -16 51 26.71 31.037 30.073 12.4
16 Feb 2004 21 03 15.047 -16 50 58.72 31.035 30.075 13.3
17 Feb 2004 21 03 23.406 -16 50 33.51 31.032 30.075 14.2
18 Feb 2004 21 03 31.208 -16 49 58.32 31.027 30.075 15.2
19 Feb 2004 21 03 39.588 -16 49 10.97 31.021 30.073 16.1
20 Feb 2004 21 03 49.042 -16 48 21.91 31.015 30.072 17.2
21 Feb 2004 21 03 58.928 -16 47 43.50 31.011 30.073 18.2