ASTROSAT CZTI

Data Quality Report

Orbit 09837

Creation date: 2024-06-27T15:51:12.944279
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/AS1G07_020T01_9000001398_09837cztM0_level2.evt modeM0/AS1G07_020T01_9000001398_09837cztM0_level2_quad_clean.evt
Size (bytes)464,889,60083,545,920
Size443.4 MB 79.7 MB
Events in quadrant A2,967,142529,525
Events in quadrant B3,534,154529,649
Events in quadrant C2,923,712527,030
Events in quadrant D4,215,000492,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132622
B0147541
C0132551
D0169731

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6465400.618716%
B6465791.221964%
C6465340.525909%
D64652043.155452%

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 7455 6466 0 0 0.00% 0.00%
B 7455 6466 34 34 0.46% 0.53%
C 7455 6466 4 4 0.05% 0.06%
D 7455 6466 157 157 2.11% 2.43%

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 25211 158.01 763 747 154.8
A 0 226 7135 41.26 763 747 154.8
A 12 194 6424 36.67 763 747 154.8
B 0 85 323996 2185.96 765 747 147.9
B 0 214 98659 662.13 765 747 147.9
B 4 239 67685 452.67 765 747 147.9
C 4 254 21123 119.87 733 736 170.1
C 14 234 20193 114.4 733 736 170.1
C 0 207 15893 89.12 733 736 170.1
D 1 52 573719 3041.27 724 705 188.4
D 2 136 361074 1912.66 724 705 188.4
D 12 233 266293 1409.61 724 705 188.4

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