ASTROSAT CZTI

Data Quality Report

Orbit 24282

Creation date: 2024-06-27T19:04:18.887683
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_047T08_9000003590_24282cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24282cztM0_level2_quad_clean.evt
Size (bytes)230,685,12055,152,000
Size220.0 MB 52.6 MB
Events in quadrant A1,401,469374,450
Events in quadrant B1,442,683381,135
Events in quadrant C2,152,431357,949
Events in quadrant D1,794,762353,233

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058291
B059541
C085741
D070281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2848331.158708%
B2848391.369382%
C2848782.738764%
D2848832.914326%

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 3588 2848 0 0 0.00% 0.00%
B 3588 2848 0 0 0.00% 0.00%
C 3588 2848 0 0 0.00% 0.00%
D 3588 2848 51 51 1.42% 1.79%

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 4079 50.33 363 355 74.0
A 3 137 3344 40.4 363 355 74.0
A 0 226 3136 37.58 363 355 74.0
B 15 33 19462 272.73 359 350 70.1
B 12 111 8386 114.67 359 350 70.1
B 11 111 7501 102.04 359 350 70.1
C 7 247 706381 8630.99 345 347 81.8
C 14 238 54786 665.5 345 347 81.8
C 2 16 36759 445.12 345 347 81.8
D 1 52 216819 2490.96 351 340 86.9
D 12 233 108509 1244.67 351 340 86.9
D 8 195 67568 773.57 351 340 86.9

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