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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
5431 Maxinehelin (1988 MB)
Classification: Main-belt Asteroid          SPK-ID: 2005431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2545620145459456 5.3896e-08  
a 2.32776132585615 1.1055e-08 au
q 1.735201713364067 1.2432e-07 au
i 23.29131019436593 6.5826e-06 deg
node 287.6581549030831 1.4942e-05 deg
peri 100.7597277430508 2.1193e-05 deg
M 184.1221430487107 1.4019e-05 deg
tp 2459234.245318021887
(2021-Jan-19.74531802)
5.2829e-05 TDB
period 1297.197489454666
3.55
9.241e-06
2.53e-08
d
yr
n .2775213511639942 1.977e-09 deg/d
Q 2.920320938348233 1.3869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1038  
   data-arc span      13788 days (37.75 yr)  
   first obs. used      1981-08-07  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39796  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:06:00  

Additional Information
 Earth MOID = .891064 au 
 Jupiter MOID = 2.78609 au 
 T_jup = 3.424 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO267729  
diameter diameter 6.198 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.1951 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 13-15.]
geometric albedo albedo 0.349   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5431 Maxinehelin (1988 MB)          Discovered 1988-Jun-19 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 MB = 1985 YB = 1986 AT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 17:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin