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JPL Small-Body Database Browser
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91110 (1998 HF45)
Classification: Main-belt Asteroid          SPK-ID: 2091110
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841622192796664 8.4363e-08  
a 2.545341959557927 1.4886e-08 au
q 2.076586135460084 2.2181e-07 au
i 6.243173300721586 1.0491e-05 deg
node 355.2372649074483 3.0699e-05 deg
peri 125.4523274056128 5.2869e-05 deg
M 223.2560963272825 3.4221e-05 deg
tp 2459563.908124119930
(2021-Dec-15.40812412)
0.00013843 TDB
period 1483.261185585431
4.06
1.3012e-05
3.562e-08
d
yr
n .2427084342923131 2.1291e-09 deg/d
Q 3.014097783655769 1.7627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1080  
   data-arc span      7379 days (20.20 yr)  
   first obs. used      1998-03-25  
   last obs. used      2018-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50863  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:22:00  

Additional Information
 Earth MOID = 1.09947 au 
 Jupiter MOID = 2.07654 au 
 T_jup = 3.411 
[ 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 14.9   n/a MPO436409  
diameter diameter 2.670 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.393   0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91110 (1998 HF45)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 HF45 = 2000 SD143 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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