ASTROSAT CZTI

Data Quality Report

Orbit 29071

Creation date: 2024-06-27T19:59:58.071246
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/AS1A10_097T04_9000004170_29071cztM0_level2.evt modeM0/AS1A10_097T04_9000004170_29071cztM0_level2_quad_clean.evt
Size (bytes)614,733,120122,719,680
Size586.3 MB 117.0 MB
Events in quadrant A4,128,236798,686
Events in quadrant B4,231,352813,444
Events in quadrant C4,395,785767,447
Events in quadrant D5,280,687741,965

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179601
B0181511
C0184101
D0212321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85653103.619381%
B85664425.159935%
C85665115.965445%
D85664234.938127%

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 8655 8565 0 0 0.00% 0.00%
B 8655 8566 8 8 0.09% 0.09%
C 8656 8566 12 12 0.14% 0.14%
D 8656 8567 119 119 1.37% 1.39%

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 14007 60.09 1068 1045 215.7
A 3 137 11316 47.62 1068 1045 215.7
A 0 226 8909 36.46 1068 1045 215.7
B 10 246 41254 197.63 1056 1024 203.6
B 12 111 26713 126.2 1056 1024 203.6
B 11 111 24220 113.95 1056 1024 203.6
C 14 238 162497 669.67 1026 1031 241.1
C 3 233 121282 498.73 1026 1031 241.1
C 2 16 92212 378.17 1026 1031 241.1
D 1 52 520009 2121.33 1026 993 244.7
D 8 195 435494 1775.9 1026 993 244.7
D 7 238 255315 1039.47 1026 993 244.7

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