Sentinel-3 Altimetry Anomalies and Events

Since the Sentinel-3 mission entered operations, the satellites have occasionally experienced anomalies or events that impact the quality and availability of the mission's data.

Download the anomalies and events report to see the details of each event affecting Altimetry. A glossary of terms is also available.

The dates of the events are summarised in the following yearly calendars. For each calendar day, if an event occurred:

  • Tagged with 'A' - events affecting only Sentinel-3A
  • Tagged with 'B' - events affecting only Sentinel-3B
  • Nothing is displayed when it affects Sentinel-3A and Sentinel-3B
  • If two events occurred, the two colours are displayed in the cell

Please consult the Product Notices related to each instrument.

Key:

Data gap
Degradation or minor anomaly on product
Major anomaly
Decontamination, data usually not available; If they are, they shall not be used
Data gap and degradation or minor anomaly on product
Data gap and major anomaly on product
Decontamination and minor anomaly on product
Decontamination and major anomaly on product
Decontamination and data gap
No event

2021

Month Day
January 01 02 03 04 05 06 07 08 09 10 11 12 13
B
14 15 16 17 18 19 20 21 22 23 24 25 26 27
A
28 29 30 31
February 01 02 03
B
04 05 06 07 08 09 10 11
A
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 - - -
March 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17
A
18 19 20 21 22 23 24 25 26 27 28 29 30 31
April 01 02 03 04 05 06 07 08 09 10 11 12 13 14
B
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
May 01 02 03 04 05 06 07 08 09 10
B
11 12 13 14 15 16 17 18 19
B
20 21 22 23 24 25
B
26 27 28 29 30 31
June 01
A
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
July 01 02
A
03 04 05 06 07 08 09 10 11 12 13 14
A
15 16 17 18 19 20 21
B
22 23
B
24 25 26 27 28 29 30 31
August 01 02 03 04 05 06 07 08 09 10
A
11 12 13 14 15 16
B
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
September 01 02 03 04 05 06 07 08
A
09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
B
30 -
October 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
November 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
December 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

2020

Month Day
January 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
A
22 23 24 25 26 27
A
28 29
A
30 31
February 01 02 03 04 05
B
06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
A|B
28
A|B
29 - -
March 01 02 03 04 05 06 07 08 09 10 11
A
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
April 01 02 03 04 05 06 07 08
B
09 10 11 12 13
B
14
A|B
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
May 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
B
28 29 30 31
June 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
B
16 17
A
18 19 20 21 22
B
23 24 25 26 27 28 29 30 -
July 01 02 03 04
A
05 06 07
A
08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
B
30 31
August 01 02 03 04 05 06 07 08
A
09
A
10 11 12 13 14 15 16
A
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
September 01 02
A
03
A
04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
October 01 02 03 04 05 06 07
B
08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
November 01 02 03 04 05 06 07 08
A|B
09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
A
26 27 28 29 30 -
December 01 02
A
03 04
A
05 06 07 08 09 10 11 12 13 14 15 16
A|B
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

2019

Month Day
January 01 02 03 04
A|B
05
B
06
B
07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
B
29
B
30 31
February 01 02 03 04 05 06 07 08 09 10 11 12 13
B
14 15
B
16 17 18 19 20 21 22 23 24 25 26 27
A
28 - - -
March 01 02 03 04 05 06 07
A
08 09
B
10
A
11 12 13
A
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
April 01 02 03 04 05
A
06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
A
30 -
May 01 02 03 04 05 06 07 08 09
B
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
June 01 02 03 04 05 06
B
07 08 09 10 11 12 13
A
14 15 16 17 18 19
B
20 21 22 23 24 25 26 27 28 29 30 -
July 01 02 03 04 05 06 07 08
A
09 10 11 12 13 14 15 16 17
B
18 19 20 21 22 23 24 25 26 27 28 29 30 31
August 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
A|B
29 30 31
September 01 02 03 04 05
A
06 07 08 09 10 11 12 13 14 15 16 17
B
18 19 20
A|B
21 22 23 24 25 26
B
27 28 29 30 -
October 01 02 03 04 05 06 07 08 09
A
10
B
11 12 13 14 15
A
16
B
17 18 19 20 21 22 23 24 25 26 27 28 29 30
A
31
November 01 02 03 04 05 06 07 08 09 10 11 12
A
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
A
28 29 30 -
December 01 02 03 04 05 06 07 08 09 10 11
A
12 13 14 15 16 17 18
B
19 20 21 22 23 24 25 26 27 28 29 30 31

2018

Mile stone dates

  1. Sentinel-3B launch: 25 April 2018
    • Drift phase: 25 April to 5 June 2018
  2. Sentinel-3B start of tandem phase: 6 June 2018
    • Tandem phase: 6 June to 15 October 2018
  3. Sentinel-3B start of second drift phase: 16 October 2018
    • Drift phase: 16 October to 23 November 2018
  4. Sentinel-3B definitive orbit: 23 November 2018
Month Day
January 01
A
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
February 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
A
- - -
March 01 02 03 04 05 06 07 08 09 10 11 12 13 14
A
15 16 17
A
18 19 20 21 22 23 24 25 26 27 28 29 30 31
April 01 02 03 04 05
A
06
A
07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
B
-
May 01
B
02
B
03 04
B
05 06 07
B
08
B
09 10
B
11
B
12
B
13
B
14
B
15
B
16
B
17
B
18
B
19
B
20
B
21
B
22
B
23
B
24
A|B
25
B
26
B
27
B
28
B
29
B
30
B
31
June 01 02
A
03
B
04 05 06
A|B
07 08
B
09 10 11 12 13
B
14 15 16 17 18 19 20 21 22 23 24 25
B
26 27 28 29 30
B
-
July 01 02 03 04
A
05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
August 01
A
02 03 04 05 06 07 08 09 10
B
11 12 13 14 15 16 17 18 19 20 21 22
A
23
B
24 25 26 27 28 29
A
30
B
31
September 01 02 03 04
B
05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
October 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
A|B
17 18 19 20 21 22 23 24
B
25 26
B
27 28 29
B
30 31
B
November 01
B
02 03 04
B
05
B
06
B
07
B
08
B
09
B
10
B
11
B
12
B
13 14 15 16 17 18 19 20
B
21 22
B
23
A|B
24 25 26
A
27
B
28
A
29 30 -
December 01
A
02 03 04 05 06 07 08 09 10 11
B
12
B
13 14 15 16 17 18 19
A
20
B
21 22 23 24 25 26 27 28
A
29 30 31

2017

Month Day
January 01 02 03 04 05 06 07 08 09 10
A
11 12 13 14 15 16 17 18 19 20 21
A
22 23 24
A
25 26 27 28 29 30 31
February 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
A
24 25 26 27
A
28
A
- - -
March 01 02
A
03 04 05 06 07 08 09 10 11 12 13 14 15
A
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
April 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
A
28 29 30 -
May 01 02 03 04 05 06 07 08 09 10
A
11
A
12 13 14 15 16 17 18 19 20 21 22 23
A
24 25 26 27 28 29 30 31
June 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
July 01 02 03 04 05 06 07 08 09 10 11 12
A
13 14 15 16 17 18 19 20 21 22 23 24 25
A
26
A
27 28 29 30 31
August 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
A
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
September 01
A
02 03 04 05 06 07
A
08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
A
28 29 30 -
October 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
A
November 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
A
30 -
December 01 02 03 04 05 06 07 08 09 10 11 12 13
A
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

2016

Mile stone dates

  1. Sentinel-3A launch: 16 February 2016
Month Day
January 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
February 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
A
17 18 19 20 21 22
A
23
A
24
A
25 26
A
27 28 29 - -
March 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
April 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
May 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
June 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
July 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
August 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
September 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
October 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
November 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -
December 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

 

Navigation Menu