ASTROSAT CZTI

Data Quality Report

Orbit 44215

Creation date: 2024-06-27T23:00:38.481274
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/AS1A13_047T01_9000005970_44215cztM0_level2.fits modeM0/AS1A13_047T01_9000005970_44215cztM0_level2_quad_clean.evt
Size (bytes)616,440,960103,795,200
Size587.9 MB 99.0 MB
Events in quadrant A11,983,129568,094
Events in quadrant B3,479,575747,442
Events in quadrant C2,981,594717,946
Events in quadrant D3,862,882648,925

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0401481
B0148791
C0138431
D0163141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6600207331.409091%
B66001802.727273%
C6600300.454545%
D66011782.696561%

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 7615 6601 2162 2162 28.39% 32.75%
B 7615 6601 66 66 0.87% 1.00%
C 7615 6601 8 8 0.11% 0.12%
D 7616 6602 142 142 1.86% 2.15%

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 15 223 7908786 55270.81 690 678 143.1
A 10 83 1361623 9511.82 690 678 143.1
A 12 227 45936 316.31 690 678 143.1
B 5 172 345731 2368.28 739 718 145.7
B 0 213 43785 295.63 739 718 145.7
B 4 170 34605 232.61 739 718 145.7
C 14 254 123660 716.38 724 727 171.6
C 3 233 30950 176.12 724 727 171.6
C 13 61 4789 23.67 724 727 171.6
D 1 52 449716 2456.6 716 692 182.8
D 2 249 327701 1789.06 716 692 182.8
D 13 249 94201 511.58 716 692 182.8

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