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JPL Small-Body Database Browser
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48873 (1998 HS99)
Classification: Main-belt Asteroid          SPK-ID: 2048873
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2304231650993036 2.9134e-08  
a 2.24833247730313 8.5981e-09 au
q 1.730264591687384 6.5959e-08 au
i 5.633225918799159 4.532e-06 deg
node 177.3887856293204 4.4032e-05 deg
peri 140.642470652514 4.559e-05 deg
M 10.25657446624164 1.2172e-05 deg
tp 2458565.417618696754
(2019-Mar-22.91761870)
4.1546e-05 TDB
period 1231.371868915647
3.37
7.0636e-06
1.934e-08
d
yr
n .2923568493707899 1.6771e-09 deg/d
Q 2.766400362918875 1.0579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      646  
   data-arc span      12459 days (34.11 yr)  
   first obs. used      1985-09-20  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52586  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:39:05  

Additional Information
 Earth MOID = .721034 au 
 Jupiter MOID = 2.56097 au 
 T_jup = 3.587 
[ 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 15.7   n/a MPO432046  

48873 (1998 HS99)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HS99 = 1985 SJ4 = 2000 AZ108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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