ASTROSAT CZTI

Data Quality Report

Orbit 25629

Creation date: 2024-06-27T19:19:43.684350
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/AS1A07_127T03_9000003732_25629cztM0_level2.evt modeM0/AS1A07_127T03_9000003732_25629cztM0_level2_quad_clean.evt
Size (bytes)677,897,28093,093,120
Size646.5 MB 88.8 MB
Events in quadrant A4,363,536586,966
Events in quadrant B3,864,691597,181
Events in quadrant C3,829,737566,494
Events in quadrant D7,953,329534,998

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176040
B0161350
C0160560
D0289710

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76641521.983299%
B76651051.369863%
C76651311.709067%
D7665113714.833659%

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 9319 7666 27 27 0.29% 0.35%
B 9320 7667 2 2 0.02% 0.03%
C 9320 7667 5 5 0.05% 0.07%
D 9320 7667 834 834 8.95% 10.88%

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 0 13 384711 1961.18 969 949 195.7
A 8 192 179846 914.24 969 949 195.7
A 6 16 50759 254.55 969 949 195.7
B 3 112 38613 203.04 962 937 185.6
B 0 190 23628 122.29 962 937 185.6
B 0 219 23573 121.99 962 937 185.6
C 14 238 146980 668.26 926 931 218.6
C 14 225 53801 241.91 926 931 218.6
C 3 233 20695 90.43 926 931 218.6
D 13 174 2269345 10402.78 898 873 218.1
D 1 52 2034312 9324.96 898 873 218.1
D 8 195 230899 1054.86 898 873 218.1

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