ASTROSAT CZTI

Data Quality Report

Orbit 23763

Creation date: 2024-06-27T18:58:27.218946
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_091T10_9000003520_23763cztM0_level2.evt modeM0/AS1A07_091T10_9000003520_23763cztM0_level2_quad_clean.evt
Size (bytes)295,966,08039,061,440
Size282.3 MB 37.3 MB
Events in quadrant A1,630,925244,819
Events in quadrant B2,214,724239,912
Events in quadrant C1,787,693241,096
Events in quadrant D3,115,393233,096

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069291
B087621
C074902
D0116061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3139441.401720%
B31391825.798025%
C31381013.218611%
D313841113.097514%

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 4249 3139 0 0 0.00% 0.00%
B 4249 3139 109 109 2.57% 3.47%
C 4248 3138 2 2 0.05% 0.06%
D 4248 3138 318 318 7.49% 10.13%

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 5432 58.48 422 415 85.8
A 0 226 3654 37.76 422 415 85.8
A 3 137 3572 36.8 422 415 85.8
B 3 64 539627 6809.22 412 402 79.2
B 0 229 36448 455.18 412 402 79.2
B 0 189 15611 192.06 412 402 79.2
C 7 247 132134 1367.16 407 410 96.3
C 14 238 64858 668.91 407 410 96.3
C 0 10 4626 43.76 407 410 96.3
D 1 52 1081468 11718.48 381 371 92.3
D 7 238 300252 3250.54 381 371 92.3
D 8 195 221424 2396.09 381 371 92.3

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