ASTROSAT CZTI

Data Quality Report

Orbit 43658

Creation date: 2024-06-27T22:54:10.327534
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/AS1A12_068T05_9000005894_43658cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43658cztM0_level2_quad_clean.evt
Size (bytes)1,037,174,40070,295,040
Size989.1 MB 67.0 MB
Events in quadrant A4,652,568660,546
Events in quadrant B3,357,836668,819
Events in quadrant C15,529,492193,559
Events in quadrant D14,393,044184,144

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179882
B0139151
C0500621
D0468451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59601272.130872%
B5961831.392384%
C5961561694.212380%
D5961516086.562657%

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 6960 5961 23 23 0.33% 0.39%
B 6961 5962 27 27 0.39% 0.45%
C 6961 5962 5502 5502 79.04% 92.28%
D 6961 5962 5036 5036 72.35% 84.47%

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 10 83 761038 5598.6 657 644 135.8
A 15 222 502239 3693.13 657 644 135.8
A 14 63 483391 3554.35 657 644 135.8
B 0 230 224261 1770.33 653 634 126.3
B 4 206 146572 1155.31 653 634 126.3
B 5 235 99199 780.28 653 634 126.3
C 15 142 10760890 226055.69 199 199 47.6
C 15 126 1738248 36512.14 199 199 47.6
C 15 158 1146739 24085.99 199 199 47.6
D 8 192 11512816 206575.48 206 199 55.7
D 14 242 399578 7166.22 206 199 55.7
D 13 187 312494 5603.63 206 199 55.7

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