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2000 Herschel (1960 OA)
Classification: Main-belt Asteroid          SPK-ID: 2002000
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2980481642302721 3.4144e-08  
a 2.379945676522901 7.0063e-09 au
q 1.670607236667477 8.2859e-08 au
i 22.81986374822999 4.5407e-06 deg
node 291.9231829981761 1.2084e-05 deg
peri 130.5016777003832 1.5486e-05 deg
M 41.09268535909704 7.6219e-06 deg
tp 2458847.422621848061
(2019-Dec-29.92262185)
2.8455e-05 TDB
period 1341.062421526515
3.67
5.9219e-06
1.621e-08
d
yr
n .2684438801813687 1.1854e-09 deg/d
Q 3.089284116378325 9.0945e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2109  
   data-arc span      31372 days (85.89 yr)  
   first obs. used      1934-07-12  
   last obs. used      2020-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:13:31  

Additional Information
 Earth MOID = .7521 au 
 Jupiter MOID = 2.36477 au 
 T_jup = 3.376 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.2   n/a MPO502172  
diameter diameter 14.768 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 130. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
geometric albedo albedo 0.277   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.893   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=21.55, mean=24.12, max.=26.77) deg.
U-B UB 0.494   0.071 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=21.55, mean=23.24, max.=26.57) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

2000 Herschel (1960 OA)          Discovered 1960-Jul-29 by Schubart, J. at Sonneberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1960 OA = 1934 NX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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