[ hide orbit diagram ]
For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
[ revert to old Java-based viewer ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 117 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1479927796040216 | 3.32e-08 | |
| a | 2.424859145417949 | 3.8239e-09 | au |
| q | 2.065997500339314 | 8.0212e-08 | au |
| i | 3.710079488950215 | 3.6739e-06 | deg |
| node | 131.4947490376897 | 5.2044e-05 | deg |
| peri | 343.8645058616266 | 5.3257e-05 | deg |
| M | 186.5544323601576 | 1.2028e-05 | deg |
| tp | 2459664.990699673795
(2022-Mar-26.49069967) | 4.6519e-05 | TDB |
| period | 1379.20302684988
3.78 | 3.2624e-06
8.932e-09 | d
yr |
| n | .2610203088244703 | 6.1743e-10 | deg/d |
| Q | 2.783720790496584 | 4.3898e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
6.9 |
|
n/a |
MPO492748 |
IRAS observations used: 18 |
| magnitude slope |
G |
0.46 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
| diameter |
diameter |
70.64 |
km |
4.0 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 18 |
| rotation period |
rot_per |
6.422 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Bianchi, E.; Padova, E. (1920) Mem. Soc. Astron. Ital. 1, 56-65.]
[Padova, E. (1921) Mem. Soc. Astron. Ital. 2, 82.]
[Groeneveld, I.; Kuiper, G.P. (1954) Astrophys. J. 120, 529-546.]
[Shatzel, A.V. (1954) Astrophys. J. 120, 547-550.]
[Cailliate, C. (1956) Publ. Observ. Lyon 3, fasc. 28.]
[Chang, Y.C.; Chang, C.-s. (1962) Acta Astron. Sin. 10, 101-111.]
[Gehrels, T.; Owings, D. (1962) Astrophys. J. 135, 906-924.]
[Yang, X.-y.; Zhang, Y.-y.; Li, X.-q. (1965) Acta Astron. Sin. 13, 66-74.]
[Zappala, V.; van Houten-Groeneveld, I. (1979) Icarus 40, 289-296.]
[Birch, P.V.; Tedesco, E.F.; Taylor, R.C.; Binzel, R.P.; et al. (1983) Icarus 54, 1-12.]
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Magnusson, P. (1983) in Asteroids, Comets, Meteors. C.-I. Lagerkvist, H. Rickman, eds. Uppsala, pp. 77-85.]
[Taylor, R.C.; Tedesco, E.F. (1983) Icarus 54, 13-22.]
[Magnusson, P. (1986) Icarus 68, 1-39.]
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
[Lagerkvist, C.-I.; Williams, I.P. (1987) Astron. Astrophys. Suppl. Ser. 68, 295-315.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.]
[Harris, A.W.; Young, J.W.; Contreiras, L.; Dockweiler, T.; et al. (1989) Icarus 81, 365-374.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1989) Astron. Astrophys. Suppl. Ser. 78, 519-532.]
[De Angelis, G. (1993) Planet. Space Sci. 41, 285-290.]
[Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Astron. Astrophys. 383, L19-L22.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Rosenbush, V.K.; Shevchenko, V.G.; Kiselev, N.N.; Sergeev, A.V.; et al. (2009) Icarus 201, 655-665.]
[Shevchenko, V.G.; Velichko, F.P.; Checha, V.A.; Krugly, Y.N. (2014) Minor Planet Bull. 41, 195-198.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.482 |
|
0.031 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| B-V |
BV |
0.703 |
|
0.020 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=19; phase (min.=4.95, mean=15.61, max.=27.78) deg. |
| U-B |
UB |
0.245 |
|
0.030 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=18; phase (min.=5.27, mean=17.16, max.=27.78) deg. |
| Tholen spectral type |
spec_T |
E |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Xc |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 44 Nysa (A857 KA) Discovered 1857-May-27 by Goldschmidt, H. at Paris |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 2014-Aug-13 11:10 |
< 00:01 |
Iris |
0.0480144110071121 |
0.0480139643272001 |
0.0480148576900505 |
5.33935599398785 |
5.33935597156388 |
2456882.965390078 |
0.151929832987724 |
39.8480384027278 |
18.2180864625335 |
68.8233052150158 |
373249.744952209 |
T |
117 |
CATAB v2.0f-lin.ifort 2020-May-20 00:57:14 |
2020-May-20 00:57 |
|
|
