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 ]  
49114 (1998 ST7)
Classification: Main-belt Asteroid          SPK-ID: 2049114
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 .165953768941741 3.1558e-08  
a 2.416754867663641 8.1667e-09 au
q 2.015685288766562 7.4657e-08 au
i 2.162622596637796 5.3182e-06 deg
node 4.53442409539339 9.2847e-05 deg
peri 109.6314623153832 9.4737e-05 deg
M 180.8351045352959 1.8185e-05 deg
tp 2459683.463901857227
(2022-Apr-13.96390186)
7.0598e-05 TDB
period 1372.294522489412
3.76
6.9559e-06
1.904e-08
d
yr
n .2623343561460419 1.3297e-09 deg/d
Q 2.817824446560721 9.522e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      10044 days (27.50 yr)  
   first obs. used      1991-11-10  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50004  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:03  

Additional Information
 Earth MOID = 1.03335 au 
 Jupiter MOID = 2.28042 au 
 T_jup = 3.496 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456577.5 (2013-Oct-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1665700099512861 3.1467e-08  
q 2.012316474520075 7.4456e-08 au
tp 2456939.730950966824
(2014-Oct-09.23095097)
6.5553e-05 TDB
node 4.693995158912864 9.2839e-05 deg
peri 109.228655314391 9.4714e-05 deg
i 2.163796071868429 5.3198e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      10044 days (27.50 yr)  
   first obs. used      1991-11-10  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50004  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:03  

Additional Information
 Jupiter MOID = 2.28042 au 
 T_jup = 3.496 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.901807778786841E-16 -2.334120661109681E-15 5.088649710150744E-13 -8.729061007397076E-15 1.314914747215143E-13 -5.84301688349545E-16
q -2.334120661109681E-15 5.543643617896392E-15 -1.120569375191836E-12 1.927400389439609E-14 -2.908687599804722E-13 1.361755912781292E-15
tp 5.088649710150744E-13 -1.120569375191836E-12 4.297232330593731E-9 -2.96866847366634E-11 1.236856466440525E-9 -8.502256124542728E-13
node -8.729061007397076E-15 1.927400389439609E-14 -2.96866847366634E-11 8.6190130032744E-9 -8.620408501781997E-9 6.75681526027456E-11
peri 1.314914747215143E-13 -2.908687599804722E-13 1.236856466440525E-9 -8.620408501781997E-9 8.970737218431829E-9 -6.774431089841561E-11
i -5.84301688349545E-16 1.361755912781292E-15 -8.502256124542728E-13 6.75681526027456E-11 -6.774431089841561E-11 2.830076693267258E-11

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 15.2   n/a MPO337650  

49114 (1998 ST7)          Discovered 1998-Sep-20 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 ST7 = 1991 VA13 = 2000 AD137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-19 10:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin