ASTROSAT CZTI

Data Quality Report

Orbit 53132

Creation date: 2025-07-25T15:42:40.725454
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/AS1C09_011T07_9000006488_53132cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53132cztM0_level2_quad_clean.evt
Size (bytes)965,059,20074,436,480
Size920.4 MB 71.0 MB
Events in quadrant A16,990,898628
Events in quadrant B7,014,746619,713
Events in quadrant C4,950,877628,457
Events in quadrant D6,248,333538,068

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0549314
B0254422
C0195072
D0233742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6695669099.925317%
B6695116117.341299%
C66953495.212845%
D6695111116.594473%

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 7705 6696 6142 6142 79.71% 91.73%
B 7705 6696 844 844 10.95% 12.60%
C 7705 6696 273 273 3.54% 4.08%
D 7705 6696 858 858 11.14% 12.81%

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 9 191 16239778 379361.61 161 157 42.8
A 15 174 27207 631.89 161 157 42.8
A 0 8 22928 531.94 161 157 42.8
B 10 254 2022469 14269.34 669 649 141.7
B 2 249 1939640 13684.76 669 649 141.7
B 4 171 113962 799.73 669 649 141.7
C 15 224 756688 3943.85 689 682 191.7
C 9 38 368989 1921.35 689 682 191.7
C 0 240 236117 1228.19 689 682 191.7
D 8 176 2553431 13794.61 636 608 185.1
D 10 172 483670 2610.31 636 608 185.1
D 1 0 135844 730.77 636 608 185.1

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