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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2973189155620864 3.921e-08  
a 2.380467195689906 1.0604e-08 AU
q 1.672709270536262 9.3819e-08 AU
i 22.79751295067294 7.7763e-06 deg
node 292.0637117261011 1.5364e-05 deg
peri 130.1932068437214 2.1124e-05 deg
M 170.9927715078292 1.243e-05 deg
tp 2456163.312893628648
(2012-Aug-23.81289363)
4.5616e-05 JED
period 1341.503247598883
3.67
8.964e-06
2.454e-08
d
yr
n .2683556679004343 1.7932e-09 deg/d
Q 3.08822512084355 1.3757e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      29178 days (79.89 yr)  
   first obs. used      1934-07-12  
   last obs. used      2014-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44369  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:20:09  

Additional Information
 Earth MOID = .754167 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 Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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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