ASTROSAT CZTI

Data Quality Report

Orbit 23853

Creation date: 2024-06-27T18:59:23.073374
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_9000003532_23853cztM0_level2.evt modeM0/AS1A07_091T10_9000003532_23853cztM0_level2_quad_clean.evt
Size (bytes)206,519,04018,285,120
Size197.0 MB 17.4 MB
Events in quadrant A1,411,80893,472
Events in quadrant B1,430,56194,244
Events in quadrant C1,510,75990,954
Events in quadrant D1,722,97387,861

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058571
B058991
C061701
D068971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A259950.192382%
B259980.307811%
C2599411.577530%
D2599431.654482%

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 2599 2599 0 0 0.00% 0.00%
B 2599 2599 1 1 0.04% 0.04%
C 2599 2599 6 6 0.23% 0.23%
D 2599 2599 7 7 0.27% 0.27%

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 4437 54.96 366 359 74.2
A 0 226 3275 39.3 366 359 74.2
A 3 137 2972 35.22 366 359 74.2
B 0 189 8868 123.4 360 351 69.0
B 12 111 7783 107.68 360 351 69.0
B 11 111 6946 95.56 360 351 69.0
C 14 238 57094 694.82 350 354 81.7
C 7 247 38460 466.63 350 354 81.7
C 0 207 29573 357.81 350 354 81.7
D 1 52 302635 3451.21 356 347 87.6
D 8 195 60108 682.29 356 347 87.6
D 2 234 10617 117.25 356 347 87.6

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