ASTROSAT CZTI

Data Quality Report

Orbit 25232

Creation date: 2024-06-27T19:15:19.259079
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_097T01_9000003692_25232cztM0_level2.evt modeM0/AS1A07_097T01_9000003692_25232cztM0_level2_quad_clean.evt
Size (bytes)496,391,04083,833,920
Size473.4 MB 80.0 MB
Events in quadrant A3,322,065528,414
Events in quadrant B3,389,136534,870
Events in quadrant C3,413,209511,580
Events in quadrant D4,462,488505,191

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138250
B0139990
C0139710
D0177770

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6576270.410584%
B6576480.729927%
C6576891.353406%
D65762423.680049%

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 7501 6577 0 0 0.00% 0.00%
B 7501 6577 1 1 0.01% 0.02%
C 7501 6577 0 0 0.00% 0.00%
D 7501 6577 140 140 1.87% 2.13%

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 13 254 10965 58.58 859 844 172.8
A 3 137 7719 39.79 859 844 172.8
A 0 226 7186 36.71 859 844 172.8
B 12 111 19300 113.33 853 832 163.0
B 11 111 17456 102.01 853 832 163.0
B 14 111 14879 86.2 853 832 163.0
C 14 238 132269 678.63 824 831 193.7
C 2 16 34324 172.93 824 831 193.7
C 3 233 24121 120.25 824 831 193.7
D 8 195 399945 1985.09 828 805 201.1
D 12 235 388129 1926.32 828 805 201.1
D 10 70 270188 1339.75 828 805 201.1

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