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 ]  
100340 (1995 SQ41)
Classification: Main-belt Asteroid          SPK-ID: 2100340
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766016860110056 5.8451e-08  
a 3.180009129242114 1.8821e-08 au
q 2.618414155487567 1.8233e-07 au
i 1.959925998677938 4.9077e-06 deg
node 138.4251752728733 0.00014977 deg
peri 212.8300228851996 0.00015024 deg
M 164.3814967510478 1.3142e-05 deg
tp 2458254.717210641059
(2018-May-16.21721064)
7.2505e-05 TDB
period 2071.290327066866
5.67
1.8388e-05
5.034e-08
d
yr
n .1738047029407956 1.543e-09 deg/d
Q 3.741604102996661 2.2145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      10223 days (27.99 yr)  
   first obs. used      1993-03-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:31:31  

Additional Information
 Earth MOID = 1.61122 au 
 Jupiter MOID = 1.69247 au 
 T_jup = 3.174 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457048.5 (2015-Jan-26.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1719117825284992 5.7682e-08  
q 2.64139074871791 1.7843e-07 au
tp 2456174.861912401595
(2012-Sep-04.36191240)
7.2551e-05 TDB
node 138.3955249633915 0.00014967 deg
peri 212.3545639632196 0.00015018 deg
i 1.956610302479515 4.9026e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      10223 days (27.99 yr)  
   first obs. used      1993-03-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:31:31  

Additional Information
 Jupiter MOID = 1.69247 au 
 T_jup = 3.174 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.327192856451162E-15 -1.025410629939513E-14 1.007284745230986E-12 -2.286447911551931E-15 9.271713170816795E-14 -1.874707302837175E-15
q -1.025410629939513E-14 3.183610759402449E-14 -3.19188143056349E-12 2.271258821474121E-15 -2.82817375404432E-13 5.774126943433266E-15
tp 1.007284745230986E-12 -3.19188143056349E-12 5.26368161293057E-9 -1.309122657985818E-11 9.408323762803013E-10 -1.55474725202028E-12
node -2.286447911551931E-15 2.271258821474121E-15 -1.309122657985818E-11 2.24006436957578E-8 -2.238887581103073E-8 2.103200338842168E-10
peri 9.271713170816795E-14 -2.82817375404432E-13 9.408323762803013E-10 -2.238887581103073E-8 2.255505785224157E-8 -2.104212273036698E-10
i -1.874707302837175E-15 5.774126943433266E-15 -1.55474725202028E-12 2.103200338842168E-10 -2.104212273036698E-10 2.403517281293495E-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 15.05   n/a MPCxxxxx  

100340 (1995 SQ41)          Discovered 1995-Sep-25 by Spacewatch at Kitt Peak
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
1906-May-19 01:57 00:03 Jupiter 1.98383253467264 1.9838312197807 1.98383384956458 3.51572452336061 3.39210753194123 2417349.581307461 2.99288745882136 81.0396148748475 28.7741222441349 -61.0587515236521 1447707.03731308 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
1982-Feb-15 14:55 00:01 Jupiter 1.95722342457343 1.95722260229846 1.95722424684829 2.53887638086765 2.36227823476957 2445016.121405383 1.19371577773643 60.7146906472515 13.1070121534217 -79.3663301665303 1729088.85912175 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
1992-Dec-10 08:48 < 00:01 Jupiter 1.76160008569264 1.76159938069671 1.76160079068776 1.78688767549273 1.49375910349688 2448966.866982906 0.83753382255867 83.1790081039039 41.4311401666775 -81.6032649700775 1476743.0734167 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2003-Oct-11 20:35 < 00:01 Jupiter 1.68576635163792 1.68576580355745 1.68576689971763 1.61751725468908 1.26942945652991 2452924.357970148 0.476670394947767 99.3183636549575 66.7489190292986 -58.4523974423545 1699013.56482487 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2014-Aug-04 15:45 < 00:01 Jupiter 1.76700074219203 1.76700029153241 1.76700119285145 2.09408854757407 1.85107934138344 2456874.156525110 0.255743716010444 58.6719370189299 9.41953081285227 87.9501550887764 2277708.87865089 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2025-May-11 20:52 < 00:01 Jupiter 1.96164031828781 1.96163986552317 1.96164077105246 3.28498173203228 3.15079657031774 2460807.369511419 0.340933570467292 48.4642761979962 16.3368178413018 88.2149395313641 3163947.62037265 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2101-Feb-08 10:33 00:02 Jupiter 1.98328304740242 1.98328232956307 1.98328376524188 2.68325957292792 2.51907124387416 2488472.939342471 1.92647920610897 71.7845703762191 12.5834133464802 -81.0121756434755 2087754.75740746 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2111-Dec-03 18:16 00:02 Jupiter 1.78582497272166 1.78582429441912 1.78582565102409 1.86299011780973 1.5881201987564 2492423.260996044 2.21186494205086 117.495692668348 30.4070665128726 89.8617898896476 1627586.28316065 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2122-Oct-05 11:39 00:03 Jupiter 1.69687076111436 1.69687021846257 1.69687130376556 1.61994032551841 1.27509682882022 2496381.985313618 2.5579190235552 170.456780644107 67.9757957062069 -73.8518665228828 1729830.80594202 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2133-Aug-03 07:28 00:03 Jupiter 1.75772577123224 1.75772493744772 1.75772660501726 1.98620887130622 1.72663103716131 2500336.811298830 3.02550744351075 117.656040149926 20.963162089127 -77.6009105179475 1718327.7120115 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31
2144-May-14 23:33 00:03 Jupiter 1.93748744911496 1.93748626586655 1.93748863236272 3.04324302695118 2.89602773453671 2504274.480930681 3.43574551008486 50.8667153697309 32.0037565481635 85.5511844963133 947909.22064015 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:31:34 2021-May-04 08:31

Alternate Designations
 1995 SQ41 = 2001 TT73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-25 12:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin