ASTROSAT CZTI

Data Quality Report

Orbit 34084

Creation date: 2024-06-27T20:56:20.026721
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/AS1C07_001T04_9000004868_34084cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34084cztM0_level2_quad_clean.evt
Size (bytes)320,080,32039,602,880
Size305.3 MB 37.8 MB
Events in quadrant A1,417,131247,054
Events in quadrant B3,690,584241,292
Events in quadrant C1,750,338245,829
Events in quadrant D2,615,042234,803

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065770
B0132090
C070680
D099750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A323720.061786%
B323756417.423540%
C3237160.494285%
D32371645.066420%

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 3237 3237 0 0 0.00% 0.00%
B 3236 3236 481 481 14.86% 14.86%
C 3236 3236 15 15 0.46% 0.46%
D 3237 3237 164 164 5.07% 5.07%

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 15 169 35158 481.48 354 346 72.3
A 10 130 6654 87.24 354 346 72.3
A 13 254 6123 79.9 354 346 72.3
B 5 31 1358704 20358.91 340 331 66.7
B 5 15 530107 7940.13 340 331 66.7
B 5 172 267118 3998.53 340 331 66.7
C 0 10 138287 1687.27 348 351 81.8
C 15 214 135182 1649.29 348 351 81.8
C 3 233 63114 767.73 348 351 81.8
D 8 195 677735 8051.54 339 328 84.1
D 7 223 332297 3945.72 339 328 84.1
D 13 249 66231 783.31 339 328 84.1

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