ASTROSAT CZTI

Data Quality Report

Orbit 06322

Creation date: 2024-06-27T15:05:35.204368
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/AS1A02_070T01_9000000832_06322cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06322cztM0_level2_quad_clean.evt
Size (bytes)480,507,84065,462,400
Size458.2 MB 62.4 MB
Events in quadrant A3,313,766378,359
Events in quadrant B3,357,643388,632
Events in quadrant C3,311,192385,069
Events in quadrant D4,120,891369,160

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141943
B0142442
C0142672
D0165922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6607731.104889%
B66071231.861662%
C6607781.180566%
D66071872.830331%

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 7702 6608 1 1 0.01% 0.02%
B 7702 6608 16 16 0.21% 0.24%
C 7702 6608 23 23 0.30% 0.35%
D 7702 6608 134 134 1.74% 2.03%

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 8 15 200661 1213.3 803 785 164.7
A 13 251 16635 96.21 803 785 164.7
A 0 226 7547 41.05 803 785 164.7
B 3 64 181122 1150.4 816 797 156.8
B 12 111 15626 94.6 816 797 156.8
B 11 111 12322 73.52 816 797 156.8
C 4 254 247891 1361.09 784 787 181.5
C 13 61 6197 29.8 784 787 181.5
C 8 222 2437 9.09 784 787 181.5
D 12 220 527607 2752.21 778 755 191.4
D 12 221 313356 1632.99 778 755 191.4
D 11 241 115457 599.19 778 755 191.4

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