ASTROSAT CZTI

Data Quality Report

Orbit 07006

Creation date: 2024-06-27T15:14:22.005111
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/AS1T01_151T01_9000000960_07006cztM0_level2.evt modeM0/AS1T01_151T01_9000000960_07006cztM0_level2_quad_clean.evt
Size (bytes)376,721,28080,703,360
Size359.3 MB 77.0 MB
Events in quadrant A2,670,156529,025
Events in quadrant B2,810,205529,377
Events in quadrant C2,590,425509,087
Events in quadrant D2,970,386498,241

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01122
B01135
C01124
D01122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011511252
B011836261
C011429247
D012407361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54061242.293748%
B54071322.441280%
C5405801.480111%
D54041001.850481%

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 7368 5418 0 0 0.00% 0.00%
B 7368 5420 2 2 0.03% 0.04%
C 7368 5415 0 0 0.00% 0.00%
D 7368 5410 16 16 0.22% 0.30%

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 4 2 6735 43.83 687 670 138.4
A 0 226 6588 42.77 687 670 138.4
A 13 14 6555 42.53 687 670 138.4
B 0 214 91261 695.49 685 669 130.3
B 4 239 46049 348.39 685 669 130.3
B 12 111 12560 91.29 685 669 130.3
C 8 128 9675 59.64 656 661 151.1
C 1 16 8622 52.68 656 661 151.1
C 13 61 5158 29.76 656 661 151.1
D 8 195 160825 981.2 664 643 163.3
D 13 105 119545 728.34 664 643 163.3
D 12 233 61901 375.24 664 643 163.3

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