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 ]  
101888 (1999 NM42)
Classification: Main-belt Asteroid          SPK-ID: 2101888
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2498556472802168 4.4881e-08  
a 2.386955424188474 1.0426e-08 au
q 1.790561131648838 1.0664e-07 au
i 4.876823598815751 4.8602e-06 deg
node 307.3963710772563 5.4829e-05 deg
peri 43.83363348253995 5.5491e-05 deg
M 207.4434458743081 1.1675e-05 deg
tp 2459571.312217063700
(2021-Dec-22.81221706)
4.6448e-05 TDB
period 1346.991607935941
3.69
8.8255e-06
2.416e-08
d
yr
n .2672622441587776 1.7511e-09 deg/d
Q 2.983349716728109 1.3031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      7613 days (20.84 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:58  

Additional Information
 Earth MOID = .788352 au 
 Jupiter MOID = 2.46611 au 
 T_jup = 3.487 
[ 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 16.1   n/a MPO469026  

101888 (1999 NM42)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
2049-Nov-20 09:18 00:06 Hygie 0.0167664353214622 0.0167642438864075 0.0167686267606744 2.78367213306947 2.78367130523469 2469765.887395260 5.62457139125789 109.709464314797 27.7838075902766 -7.31608941500568 25327.5332993817 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:59 2020-Nov-12 19:58
2087-Apr-04 09:08 < 00:01 Amphi 0.037307001207291 0.0373030379422979 0.0373109688988431 4.52096297922888 4.52096294514478 2483414.880222916 0.607534202597725 722.871744076192 76.8797368614099 75.3214742387727 70223.2651427613 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:59 2020-Nov-12 19:58
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-23 09:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin