ASTROSAT CZTI

Data Quality Report

Orbit 29060

Creation date: 2024-06-27T19:59:47.134003
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/AS1C05_019T04_9000004162_29060cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29060cztM0_level2_quad_clean.evt
Size (bytes)686,154,240128,727,360
Size654.4 MB 122.8 MB
Events in quadrant A3,963,333839,661
Events in quadrant B4,084,570863,428
Events in quadrant C4,078,618828,149
Events in quadrant D8,061,873760,746

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177611
B0179711
C0178091
D0299711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8731630.721567%
B8732740.847458%
C8732941.076500%
D873296511.051306%

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 9226 8731 0 0 0.00% 0.00%
B 9227 8732 6 6 0.07% 0.07%
C 9227 8732 5 5 0.05% 0.06%
D 9227 8732 628 628 6.81% 7.19%

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 1 113 51757 248.89 1011 988 204.0
A 13 254 14734 67.39 1011 988 204.0
A 3 137 10260 45.45 1011 988 204.0
B 10 245 65665 335.68 1004 979 192.7
B 12 111 23906 118.98 1004 979 192.7
B 11 111 21942 108.79 1004 979 192.7
C 14 238 157425 696.8 965 968 224.5
C 3 233 98250 433.26 965 968 224.5
C 2 16 30994 133.73 965 968 224.5
D 1 52 3386565 15239.41 931 902 222.2
D 8 195 958344 4309.6 931 902 222.2
D 2 250 75606 336.25 931 902 222.2

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