ASTROSAT CZTI

Data Quality Report

Orbit 45542

Creation date: 2024-06-27T23:13:24.554820
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_071T02_9000006106_45542cztM0_level2.fits modeM0/AS1A13_071T02_9000006106_45542cztM0_level2_quad_clean.evt
Size (bytes)2,509,640,640560,977,920
Size2.3 GB 535.0 MB
Events in quadrant A29,062,3183,738,731
Events in quadrant B22,047,7723,720,139
Events in quadrant C17,076,3773,717,879
Events in quadrant D21,949,1163,350,131

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01117917
B0902274
C0770594
D0899969

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07220
B07220
C07220
D07220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A357799372.618855%
B3578123126.461530%
C357815321.486823%
D3577812343.449047%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 38355 35785 63 63 0.16% 0.18%
B 38356 35786 1170 1170 3.05% 3.27%
C 38356 35786 201 201 0.52% 0.56%
D 38355 35784 706 706 1.84% 1.97%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 12754089 15345.33 4026 3934 830.9
A 13 248 577678 690.52 4026 3934 830.9
A 15 174 106996 124.04 4026 3934 830.9
B 15 201 3820970 4903.63 3938 3816 778.4
B 12 18 733977 937.99 3938 3816 778.4
B 5 172 505102 643.97 3938 3816 778.4
C 14 254 946266 1009.27 3965 3981 933.6
C 12 2 627835 668.2 3965 3981 933.6
C 1 3 33121 31.21 3965 3981 933.6
D 13 249 2335005 2365.17 3940 3818 985.6
D 1 52 1760853 1782.65 3940 3818 985.6
D 12 233 659738 665.48 3940 3818 985.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter