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 ]  
3988 Huma (1986 LA)
Classification: Amor [NEO]          SPK-ID: 2003988
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 132 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .31665902506828 3.4922e-08  
a 1.544471256203417 3.7165e-09 au
q 1.055400493968061 5.3575e-08 au
i 10.76737558223517 5.8003e-06 deg
node 229.8131873703807 2.2654e-05 deg
peri 86.89903797420202 2.5277e-05 deg
M 214.7719844198296 9.7569e-06 deg
tp 2459283.323879024310
(2021-Mar-09.82387902)
1.9803e-05 TDB
period 701.0809590835833
1.92
2.5305e-06
6.928e-09
d
yr
n .5134927647593986 1.8534e-09 deg/d
Q 2.033542018438773 4.8934e-09 au
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      12282 days (33.63 yr)  
   first obs. used      1986-06-04  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 09:04:41  

Additional Information
 Earth MOID = .177819 au 
 Jupiter MOID = 3.31692 au 
 T_jup = 4.384 
[ 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 17.8   n/a MPO431543  
diameter diameter 0.7 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)
rotation period rot_per 10.4 h n/a LCDB (Rev. 2019-August); 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:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]

3988 Huma           Discovered 1986 June 4 by E. F. Helin at Palomar.
The Huma (or Homa) are legendary birds within Iranian mythology and Sufi fable. A huma is a bird of fortune since its touch, or even sight of its shadow, is said to be auspicious. Name suggested by the SGAC Name An Asteroid Campaign.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-09-09Last Updated: 2014-11-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-28 07:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin