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30450 (2000 NM20)
Classification: Main-belt Asteroid          SPK-ID: 2030450
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03995488888608218 8.2838e-08  
a 2.97031129471954 2.1713e-08 au
q 2.851632836981945 2.4698e-07 au
i 8.843904865989234 5.6493e-06 deg
node 284.5813101872603 5.6359e-05 deg
peri 253.4742521827861 8.8667e-05 deg
M 118.4822195742571 6.7245e-05 deg
tp 2458585.107700592736
(2019-Apr-11.60770059)
0.00035022 TDB
period 1869.826785678732
5.12
2.0503e-05
5.613e-08
d
yr
n .1925312027602187 2.1111e-09 deg/d
Q 3.088989752457134 2.2581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      21878 days (59.90 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52361  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:35:37  

Additional Information
 Earth MOID = 1.87187 au 
 Jupiter MOID = 1.98685 au 
 T_jup = 3.244 
[ 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 14.07   n/a E2021B10  
diameter diameter 5.656 km 0.622 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.9599 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 0.152   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30450 (2000 NM20)          Discovered 2000-Jul-06 by Spacewatch at Kitt Peak
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 NM20 = 1998 BR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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