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37751 (1997 CH1)
Classification: Main-belt Asteroid          SPK-ID: 2037751
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04522806417156688 1.4222e-08  
a 2.724655336034486 1.1493e-08 au
q 2.601424449650916 4.024e-08 au
i 4.816246866114085 8.1337e-07 deg
node 306.1792323407334 1.1618e-05 deg
peri 280.6556044749851 3.7743e-05 deg
M 34.2312032063057 3.1517e-05 deg
tp 2459044.298410245172
(2020-Jul-13.79841025)
0.00014407 TDB
period 1642.728477080804
4.50
1.0394e-05
2.846e-08
d
yr
n .2191475980496393 1.3866e-09 deg/d
Q 2.847886222418055 1.2013e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2029  
   data-arc span      8592 days (23.52 yr)  
   first obs. used      1997-02-01  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:29:24  

Additional Information
 Earth MOID = 1.5953 au 
 Jupiter MOID = 2.15621 au 
 T_jup = 3.350 
[ 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 13.62   n/a E2021B10  
diameter diameter 9.337 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.68 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.097   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37751 (1997 CH1)          Discovered 1997-Feb-01 by Kobayashi, T. at Oizumi
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 CH1 = 1999 RS25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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