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

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .296901762631109 3.6726e-08  
a 2.380525658179751 9.4484e-09 au
q 1.673743394277602 8.9063e-08 au
i 22.79519918166298 7.3352e-06 deg
node 292.0591136079106 1.4275e-05 deg
peri 130.2001029736798 1.9615e-05 deg
M 25.61937554195446 1.2537e-05 deg
tp 2457505.028495570133
(2016-Apr-26.52849557)
4.6528e-05 JED
period 1341.552667373493
3.67
7.987e-06
2.187e-08
d
yr
n .2683457822828619 1.5976e-09 deg/d
Q 3.0873079220819 1.2254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      29774 days (81.52 yr)  
   first obs. used      1934-07-12  
   last obs. used      2016-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .426  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 17:51:07  

Additional Information
 Earth MOID = .754267 au 
 Jupiter MOID = 2.37329 au 
 T_jup = 3.377 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.25 mag n/a PDS3 (MPC 17264)  
rotation period rot_per 130. h n/a LCDB (Rev. 2016-February); 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 Bul. 38, 96-101.]
B-V BV .893 mag .028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=21.55, mean=24.12, max.=26.77) deg.
U-B UB .494 mag .071 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #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 | Physical Parameters | Discovery Circumstances ]
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