ASTROSAT CZTI

Data Quality Report

Orbit 18210

Creation date: 2024-06-27T17:46:47.924829
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/AS1T03_003T01_9000002712_18210cztM0_level2.evt modeM0/AS1T03_003T01_9000002712_18210cztM0_level2_quad_clean.evt
Size (bytes)579,015,36070,824,960
Size552.2 MB 67.5 MB
Events in quadrant A3,825,108440,186
Events in quadrant B3,525,366444,509
Events in quadrant C3,361,878429,373
Events in quadrant D6,387,455381,495

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151335
B0140492
C0135932
D0231312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64262453.812636%
B64261181.836290%
C64271071.664851%
D642793714.579119%

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 7685 6426 96 96 1.25% 1.49%
B 7685 6426 11 11 0.14% 0.17%
C 7687 6428 0 0 0.00% 0.00%
D 7687 6427 811 811 10.55% 12.62%

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 15 174 523294 3043.17 857 841 171.7
A 0 226 7450 38.5 857 841 171.7
A 12 194 6400 32.38 857 841 171.7
B 7 220 79284 493.2 852 832 159.1
B 4 171 42700 263.21 852 832 159.1
B 3 209 22561 136.6 852 832 159.1
C 14 238 130616 684.26 823 831 189.7
C 8 128 9397 45.16 823 831 189.7
C 3 233 6453 29.64 823 831 189.7
D 7 238 2405202 12377.02 806 785 194.3
D 1 52 429794 2208.38 806 785 194.3
D 5 51 248937 1277.39 806 785 194.3

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