Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
20397 (1998 MR35)
Classification: Main-belt Asteroid          SPK-ID: 2020397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07896017487158738 3.3871e-08  
a 2.897131628642403 1.2015e-08 au
q 2.668373608618792 9.8194e-08 au
i 3.056389605222384 3.4647e-06 deg
node 53.78748045802257 7.0591e-05 deg
peri 285.3265686730643 7.4167e-05 deg
M 161.6181406877793 2.4013e-05 deg
tp 2458391.891367486431
(2018-Sep-30.39136749)
0.00011939 TDB
period 1801.153672886527
4.93
1.1205e-05
3.068e-08
d
yr
n .1998718962291898 1.2434e-09 deg/d
Q 3.125889648666014 1.2964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2260  
   data-arc span      11450 days (31.35 yr)  
   first obs. used      1989-11-03  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:19:33  

Additional Information
 Earth MOID = 1.65965 au 
 Jupiter MOID = 2.17631 au 
 T_jup = 3.282 
[ 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 13.46   n/a E2021B10  
diameter diameter 5.710 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.746 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.259   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20397 (1998 MR35)          Discovered 1998-Jun-24 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 MR35 = 1989 VA6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 10:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin