ASTROSAT CZTI

Data Quality Report

Orbit 07610

Creation date: 2024-06-27T15:21:46.291867
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/AS1G06_117T01_9000001046_07610cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07610cztM0_level2_quad_clean.evt
Size (bytes)535,999,68085,714,560
Size511.2 MB 81.7 MB
Events in quadrant A3,142,785543,418
Events in quadrant B3,247,290552,037
Events in quadrant C5,139,111518,784
Events in quadrant D4,248,151513,230

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137203
B0139132
C0198762
D0171372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6715390.580789%
B6715520.774386%
C67155327.922561%
D67152553.797468%

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 7840 6716 0 0 0.00% 0.00%
B 7840 6716 8 8 0.10% 0.12%
C 7840 6716 441 441 5.62% 6.57%
D 7840 6716 212 212 2.70% 3.16%

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 0 128 16831 96.57 809 792 166.1
A 3 1 14155 80.46 809 792 166.1
A 0 226 7687 41.51 809 792 166.1
B 10 247 49490 316.56 808 789 153.8
B 0 219 18143 112.8 808 789 153.8
B 4 81 16480 101.99 808 789 153.8
C 9 68 2146170 12128.23 761 765 176.9
C 4 254 20062 109.09 761 765 176.9
C 13 61 5860 28.8 761 765 176.9
D 13 104 918143 4850.54 768 743 189.1
D 2 136 269351 1420.2 768 743 189.1
D 2 14 60073 313.69 768 743 189.1

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