ASTROSAT CZTI

Data Quality Report

Orbit 53029

Creation date: 2025-07-18T06:10:23.309493
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_53029cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53029cztM0_level2_quad_clean.evt
Size (bytes)2,609,017,920149,086,080
Size2.4 GB 142.2 MB
Events in quadrant A39,823,08914,259
Events in quadrant B12,327,7631,389,602
Events in quadrant C20,116,8351,053,502
Events in quadrant D23,073,866946,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03240
B03240
C03240
D03240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01292419
B0477433
C0710403
D0797083

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160691596199.327898%
B16070170210.591164%
C16070410025.513379%
D16070524432.632234%

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 16483 16068 15431 15431 93.62% 96.04%
B 16485 16073 1393 1393 8.45% 8.67%
C 16484 16070 3891 3891 23.60% 24.21%
D 16484 16069 4993 4993 30.29% 31.07%

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 37286488 416332.47 349 340 89.6
A 7 206 604161 6742.19 349 340 89.6
A 0 8 236809 2640.38 349 340 89.6
B 10 44 3015576 9177.65 1563 1509 328.4
B 4 216 508359 1543.33 1563 1509 328.4
B 2 249 492958 1496.43 1563 1509 328.4
C 1 241 5461864 14073.34 1425 1418 388.0
C 15 224 3999439 10304.2 1425 1418 388.0
C 7 80 2010604 5178.32 1425 1418 388.0
D 12 17 10255193 25529.66 1371 1305 401.6
D 8 176 2244326 5584.57 1371 1305 401.6
D 2 62 887551 2206.53 1371 1305 401.6

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