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30537 (2001 OR8)
Classification: Main-belt Asteroid          SPK-ID: 2030537
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968126100314066 2.4485e-08  
a 2.408130547057544 8.0525e-09 au
q 1.93418008879479 5.829e-08 au
i 3.643085077007543 2.648e-06 deg
node 257.6602194876602 6.9387e-05 deg
peri 348.9604597075941 7.0624e-05 deg
M 114.0817560159264 1.4583e-05 deg
tp 2458767.954135951886
(2019-Oct-11.45413595)
5.4797e-05 TDB
period 1364.955418775128
3.74
6.8464e-06
1.874e-08
d
yr
n .2637448777067413 1.3229e-09 deg/d
Q 2.882081005320298 9.6374e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1618  
   data-arc span      11073 days (30.32 yr)  
   first obs. used      1990-10-09  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:37:12  

Additional Information
 Earth MOID = .919212 au 
 Jupiter MOID = 2.15032 au 
 T_jup = 3.492 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.01   n/a E2021B10  
diameter diameter 5.733 km 1.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 8.55219 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.072   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

30537 (2001 OR8)          Discovered 2001-Jul-17 by LONEOS at Anderson Mesa
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 OR8 = 1990 TQ6 = 2000 CW12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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