ASTROSAT CZTI

Data Quality Report

Orbit 10057

Creation date: 2024-06-27T15:54:26.108591
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/AS1A03_084T01_9000001440_10057cztM0_level2.evt modeM0/AS1A03_084T01_9000001440_10057cztM0_level2_quad_clean.evt
Size (bytes)207,302,40034,865,280
Size197.7 MB 33.3 MB
Events in quadrant A1,220,501232,225
Events in quadrant B1,306,591233,829
Events in quadrant C1,169,461224,626
Events in quadrant D2,426,515201,915

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050422
B053511
C048451
D087841

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2251562.487783%
B2251672.976455%
C2251361.599289%
D225143619.369169%

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 3406 2251 0 0 0.00% 0.00%
B 3406 2251 3 3 0.09% 0.13%
C 3406 2251 0 0 0.00% 0.00%
D 3406 2251 325 325 9.54% 14.44%

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 8 15 15359 233.23 313 306 64.5
A 0 226 2897 40.14 313 306 64.5
A 12 194 2702 37.12 313 306 64.5
B 4 81 30807 503.8 309 303 60.5
B 0 219 23885 389.48 309 303 60.5
B 0 214 23236 378.76 309 303 60.5
C 14 67 4060 53.32 298 300 70.5
C 13 61 2253 27.69 298 300 70.5
C 8 222 828 7.49 298 300 70.5
D 1 52 764429 10757.09 286 278 71.0
D 2 16 447679 6298.15 286 278 71.0
D 12 233 40544 566.83 286 278 71.0

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