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 ]  
1429 Pemba (1937 NH)
Classification: Main-belt Asteroid          SPK-ID: 2001429
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3335487743978812 8.9909e-09  
a 2.556300469508073 7.9113e-09 au
q 1.703649580910927 2.1203e-08 au
i 7.746237789933403 8.5638e-07 deg
node 47.6682816034623 4.7708e-06 deg
peri 297.8994843103015 6.2496e-06 deg
M 184.1017398635213 3.7657e-06 deg
tp 2460125.916057175694
(2023-Jun-30.41605718)
1.8181e-05 TDB
period 1492.850357811996
4.09
6.9301e-06
1.897e-08
d
yr
n .2411494213844956 1.1195e-09 deg/d
Q 3.408951358105218 1.055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2909  
   data-arc span      30663 days (83.95 yr)  
   first obs. used      1937-07-02  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45163  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:21:53  

Additional Information
 Earth MOID = .713322 au 
 Jupiter MOID = 2.06654 au 
 T_jup = 3.345 
[ 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 12.41   n/a MPCxxxxx  
diameter diameter 9.874 km 0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 20. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
geometric albedo albedo 0.196   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1429 Pemba (1937 NH)          Discovered 1937-Jul-02 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1937 NH = 1949 JK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-29 21:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin