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JPL Small-Body Database Browser
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1516 Henry (1938 BG)
Classification: Main-belt Asteroid          SPK-ID: 2001516
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860256453232833 4.5006e-08  
a 2.62196994772401 7.483e-09 au
q 2.134216296180396 1.1804e-07 au
i 8.749267137903773 3.4521e-06 deg
node 125.8186724513911 3.2913e-05 deg
peri 94.37846476207558 3.4059e-05 deg
M 89.06128798574052 8.8521e-06 deg
tp 2458616.857721150109
(2019-May-13.35772115)
3.8009e-05 TDB
period 1550.743577928869
4.25
6.6386e-06
1.818e-08
d
yr
n .2321466973158813 9.9381e-10 deg/d
Q 3.109723599267624 8.875e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2267  
   data-arc span      29786 days (81.55 yr)  
   first obs. used      1938-01-28  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47317  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:18:16  

Additional Information
 Earth MOID = 1.14788 au 
 Jupiter MOID = 1.9343 au 
 T_jup = 3.363 
[ 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 12.0   n/a MPO492768  
diameter diameter 26.442 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.599 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Polakis, T. (2019) Minor Planet Bull. 46-4, in press.]
geometric albedo albedo 0.039   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1516 Henry (1938 BG)          Discovered 1938-Jan-28 by Patry, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1940-Nov-07 21:02 < 00:01 Jupiter 1.93079138576006 1.93079095902878 1.93079181249101 1.55576667227755 1.2421860429118 2429941.376205546 0.895454244022843 136.66271330781 80.595931411097 85.2575665105731 1846366.6124598 T 33 CATAB v2.0f-lin.ifort 2019-Sep-23 19:18:27 2019-Sep-23 19:18
2000-May-13 18:42 < 00:01 Jupiter 1.95063623426867 1.95063584233581 1.9506366262012 1.64137870579411 1.35117222038057 2451678.279049767 0.221706743513259 113.021848515434 63.3366403773395 -85.8391509838777 1923135.2302065 T 33 CATAB v2.0f-lin.ifort 2019-Sep-23 19:18:27 2019-Sep-23 19:18
2059-Nov-17 05:49 < 00:01 Jupiter 1.97677550447442 1.97677508424276 1.97677592470574 1.80155412363261 1.54551717920217 2473414.742506467 0.597016159452288 104.638184148266 43.946688811438 -78.2953864859645 1843720.82614696 T 33 CATAB v2.0f-lin.ifort 2019-Sep-23 19:18:27 2019-Sep-23 19:18
2105-Dec-04 01:38 00:01 Jupiter 1.99696513486913 1.99696455540058 1.9969657143378 2.28786468930822 2.09428151591559 2490232.567757536 1.13130393913298 88.8380911247222 17.9384817291963 81.244707910837 2162809.19402218 T 33 CATAB v2.0f-lin.ifort 2019-Sep-23 19:18:27 2019-Sep-23 19:18
2165-Jun-07 11:42 00:02 Jupiter 1.96984762406213 1.96984694271845 1.96984830540716 2.02870380576013 1.80434233923424 2511967.987221295 1.85900562473501 152.706183679872 23.0877936109794 73.3488163299326 2082473.30876329 T 33 CATAB v2.0f-lin.ifort 2019-Sep-23 19:18:27 2019-Sep-23 19:18

Alternate Designations
 1938 BG = 1938 DM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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