ASTROSAT CZTI

Data Quality Report

Orbit 46402

Creation date: 2024-06-27T23:22:44.391421
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_070T04_9000006204_46402cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46402cztM0_level2_quad_clean.evt
Size (bytes)491,909,760114,258,240
Size469.1 MB 109.0 MB
Events in quadrant A6,262,934765,517
Events in quadrant B4,129,082792,102
Events in quadrant C3,172,978763,207
Events in quadrant D4,140,854686,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224934
B0164612
C0137412
D0165642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64813214.952939%
B64813916.033020%
C6481931.434964%
D64813094.767783%

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 7651 6481 5 5 0.07% 0.08%
B 7651 6482 159 159 2.08% 2.45%
C 7651 6482 9 9 0.12% 0.14%
D 7651 6482 147 147 1.92% 2.27%

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 3238637 20397.83 774 759 158.7
A 13 248 21849 132.86 774 759 158.7
A 13 254 10706 62.66 774 759 158.7
B 5 255 356132 2394.4 767 746 148.4
B 5 172 304931 2049.43 767 746 148.4
B 4 171 221478 1487.17 767 746 148.4
C 9 54 142442 804.76 758 759 176.1
C 1 3 34088 189.31 758 759 176.1
C 14 254 26065 143.74 758 759 176.1
D 5 235 816297 4306.48 758 734 189.4
D 2 249 84192 440.69 758 734 189.4
D 13 138 83709 438.14 758 734 189.4

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