ASTROSAT CZTI

Data Quality Report

Orbit 54313

Creation date: 2025-10-12T16:06:20.697109
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/AS1A14_126T15_9000006516_54313cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54313cztM0_level2_quad_clean.evt
Size (bytes)585,590,40071,737,920
Size558.5 MB 68.4 MB
Events in quadrant A3,226,293541,182
Events in quadrant B2,556,219604,604
Events in quadrant C3,571,105513,524
Events in quadrant D11,882,644117,518

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137971
B0118731
C0147211
D0391593

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56483355.931303%
B5648711.257082%
C56492554.514073%
D5648451779.975212%

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 6773 5649 205 205 3.03% 3.63%
B 6773 5649 15 15 0.22% 0.27%
C 6774 5650 217 217 3.20% 3.84%
D 6773 5649 3690 3690 54.48% 65.32%

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 7 29 852134 5773.27 592 578 147.5
A 4 3 37968 253.49 592 578 147.5
A 8 249 15656 102.22 592 578 147.5
B 0 213 70214 548.83 594 574 126.9
B 7 0 61035 476.49 594 574 126.9
B 9 251 25610 197.31 594 574 126.9
C 1 241 806733 5196.37 567 562 155.1
C 14 254 161180 1035.3 567 562 155.1
C 1 16 114701 735.71 567 562 155.1
D 8 176 10705092 162906.7 227 216 65.7
D 14 52 75885 1151.53 227 216 65.7
D 3 12 72943 1106.76 227 216 65.7

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