Cohoweb Data Explorer - Near-Earth Heliosphere Data - NSSDC - Goddard Space Flight Center

COHOWeb News

October, 2021
Updated OMNI_M Mag. data up to 2021/09/23
Updated OMNI_M Plasma data up to 2021/10/03

September, 2021
Updated OMNI_M Mag. data up to 2021/08/26
Updated OMNI_M Plasma data up to 2021/09/06

August, 2021
Updated STEREO-A data for 2020- 2021/02/28
Updated OMNI_M Mag. data up to 2021/08/10
Updated OMNI_M Plasma data up to 2021/08/18

July, 2021
Updated PSP all magnetic field data for 2018-2021/03/31 year
Updated PSP plasma data for up to 2021/01/27 year
Updated OMNI_M Mag. data up to 2021/07/01
Updated OMNI_M Plasma data up to 2021/07/11

June, 2021
Updated Voyager2 magnetic field data up to 2019 year
Updated OMNI_M Mag. data up to 2021/05/21
Updated OMNI_M Plasma data up to 2021/06/07
Updated PSP magnetic field data for 2020 year

May, 2021
Updated OMNI_M Mag. data up to 2021/05/05
Updated OMNI_M Plasma data up to 2021/05/18

April, 2021
Updated PSP: mag. data up to 2020/12/31
Updated PSP: plasma data up to 2021/01/11
Updated OMNI_M Mag. data up to 2021/04/07
Updated OMNI_M Plasma data up to 2021/04/20

March, 2021
Updated OMNI_M Mag. data up to 2021/03/23
Updated OMNI_M Plasma data up to 2021/04/04

March, 2021
Updated OMNI_M Mag. data up to 2021/03/11
Updated OMNI_M Plasma data up to 2021/03/17

February, 2021
Updated OMNI_M Mag. data up to 2021/01/20
Updated OMNI_M Plasma data up to 2021/01/31

January, 2021
Updated NEW_HORIZONS Plasma data up to 2020/01/27
Updated STEREO-A Plasma data up to 2020/09/30
Updated STEREO-A Mag. data up to 2020/09/30
Updated OMNI_M Mag. data up to 2021/01/08
Updated OMNI_M Plasma data up to 2021/01/18

December, 2020
Updated STEREO-A Mag. and Plasma data up to 2020/09/30
Updated OMNI_M Mag. data up to 2020/12/02
Updated OMNI_M Plasma data up to 2020/12/13
Updated PSP: mag. data up to 2020/11/01
Updated PSP: plasma data up to 2020/08/31
November, 2020
Updated OMNI_M Mag. data up to 2020/11/05
Updated OMNI_M Plasma data up to 2020/11/15

October, 2020
Updated STEREO-A Magnetic field data up to 2019/12/31
Added Voyager-2 mag data for 2016
Updated OMNI_M Mag. data up to 2020/09/23
Updated OMNI_M Plasma data up to 2020/09/30

September, 2020
Updated PSP: mag. data up to 2020/04/30;
Updated PSP: plasma data up to 2020/02/10;
Updated OMNI_M Mag. data up to 2020/08/27
Updated OMNI_M Plasma data up to 2020/09/08

August, 2020
Updated OMNI_M Mag. data up to 2020/07/30
Updated OMNI_M Plasma data up to 2020/08/10

July, 2020
Updated STEREO-A Plasma data up to 2019/12/05
Updated OMNI_M Mag. data up to 2020/07/02
Updated OMNI_M Plasma data up to 2020/07/12

June, 2020
Updated OMNI_M Mag. data up to 2020/05/17
Updated OMNI_M Plasma data up to 2020/05/18
Added Voyager-1 mag data for 2019

May, 2020
Updated OMNI_M Mag. data up to 2020/05/06
Updated OMNI_M Plasma data up to 2020/05/16

April, 2020
Updated Parker Solar Probe: mag up to 2020/01/14; plasma up to 2019/10/12
Updated OMNI_M Mag. data up to 2020/03/25
Updated OMNI_M Plasma data up to 2020/04/05

March, 2020
Reprocessed all STEREO-A and STEREO-B hourly mag data: we started to use 1-min data (to compute 1-hr average data)
from https://cdaweb.sci.gsfc.nasa.gov/, data set: STA(B)_L2_MAGPLASMA_1M data set
Updated OMNI_M Mag. data up to 2020/03/11
Updated OMNI_M Plasma data up to 2020/03/22

February, 2020
Updated OMNI_M Mag. data up to 2020/01/31
Updated OMNI_M Plasma data up to 2020/02/10

January, 2020
Data from new spacecraft: Parker Solar Probe ( magnetic field and plasma) were added at COHOWeb
Updated OMNI_M Mag. data up to 2019/12/21
Updated OMNI_M Plasma data up to 2019/12/31

December, 2019
Updated OMNI_M Mag. data up to 2019/12/06
Updated OMNI_M Plasma data up to 2019/12/16

November, 2019
Updated OMNI_M Mag. data up to 2019/10/30
Updated OMNI_M Plasma data up to 2019/11/10

October, 2019
Updated STEREO_A Plasma data up to 2019/08/31
Updated Voyager-2 Plasma data up to 2018/11/04
Updated New Horizons plasma data up to 2018-10-31
Updated Voyager-1 mag. data up to 2018/12/31
Updated OMNI_M Mag. data up to 2019/09/18
Updated OMNI_M Plasma data up to 2019/10/05

September, 2019
Updated OMNI_M Mag. data up to 2019/09/03
Updated OMNI_M Plasma data up to 2019/09/18

August, 2019
Updated OMNI_M Mag. data up to 2019/08/07
Updated OMNI_M Plasma data up to 2019/08/18

July, 2019
Updated STEREO-A mag data up to 2018/12/31
Updated OMNI_M Plasma data up to 2019/06/24
Updated OMNI_M IMF data up to 2019/06/11

May, 2019
Updated STEREO-A plasma data up to 2018/12/31
Updated OMNI_M Plasma data up to 2019/05/06
Updated OMNI_M IMF data up to 2019/05/02

April, 2019
Updated OMNI_M Plasma data up to 2019/04/15
Updated OMNI_M IMF data up to 2019/04/03

March, 2019
Added Voyager-1 mag data for 2017
Updated OMNI_M Plasma data up to 2019/03/02
Updated OMNI_M IMF data up to 2019/02/08

February, 2019
Updated STEREO-A mag data up to 2018/07/31
Updated OMNI_M Plasma data up to 2019/02/03
Updated OMNI_M IMF data up to 2019/01/16
Added Voyager-2 mag data for 2017 ( Note: no mag data for 2016)

January, 2019
Updated OMNI_M Plasma data up to 2018/12/31
Updated STEREO-A plasma data up to 2018/07/31

December, 2018
Updated STEREO-A plasma data up to 2018/04/30
Updated STEREO-A mag data up to 2018/03/31
Updated OMNI_M Plasma data up to 2018/11/27
Updated OMNI_M IMF data up to 2018/10/13

November, 2018
Updated Voyager-2 plasma data up to 2018/10/26
Updated OMNI_M Plasma data up to 2018/10/27
Updated OMNI_M IMF data up to 2018/10/17

October, 2018
Updated Voyager-2 plasma data up to 2018/09/26
Updated OMNI_M Plasma data up to 2018/09/29
Updated OMNI_M IMF data up to 2018/09/19

September, 2018
Updated New HORIZONS plasma data up to 2017/10/21
Updated Voyager-2 plasma data up to 2018/09/02
Updated STEREO-A plasma data up to 2018/03/31
Updated STEREO-A mag data up to 2017/12/31
August, 2018
Updated Voyager-2 plasma data up to 2018/08/14
Updated OMNI_M Plasma data up to 2018/08/14
Updated OMNI_M IMF data up to 2018/08/03

July, 2018
Updated Voyager-2 plasma data up to 2018/07/10
Updated OMNI_M Plasma data up to 2018/07/16
Updated OMNI_M IMF data up to 2018/06/20

June, 2018
Updated Voyager-2 plasma data up to 2018/06/13
Updated OMNI_M Plasma data up to 2018/05/27
Updated OMNI_M IMF data up to 2018/05/11
Updated Voyager-1 mag data up to 2017/09/28

May, 2018
Updated OMNI_M Plasma data up to 2018/05/09
Updated OMNI_M IMF data up to 2018/04/24
Updated Voyager-2 plasma data up to 2018/05/06
Updated Voyager-2 mag data up to 2015/12/31

April, 2018
Updated OMNI_M Plasma data up to 2018/04/21
Updated OMNI_M IMF data up to 2018/04/11
Updated Voyager-2 plasma data up to 2018/04/03

March, 2018
Updated Voyager-2 plasma data up to 2018/03/19
Updated OMNI_M Plasma data up to 2018/03/17
Updated OMNI_M IMF data up to 2018/03/08
Updated STEREO-A plasma data up to 2017/12/31
Updated STEREO-A mag field data up to 2017/08/31

February, 2018
Updated OMNI_M Plasma data up to 2018/02/21
Updated OMNI_M IMF data up to 2018/02/08
Updated New HORIZON plasma data up to 2017/04/13
Updated Voyager-2 plasma data up to 2018/02/13

January, 2018
Updated OMNI_M Plasma data up to 2018/01/22
Updated OMNI_M IMF data up to 2018/01/11
Updated Voyager-2 plasma data up to 2018/01/21


If you have any questions/comments about COHOWEB system, contact:
Dr. Natalia Papitashvili, Mail Code 672, NASA/Goddard Space Flight Center, Greenbelt, MD 20771

NASA Official: Robert Candey (Robert.M.Candey@nasa.gov), Head of the Space Physics Data Facility