ASTROSAT CZTI

Data Quality Report

Orbit 08090

Creation date: 2024-06-27T15:27:48.814071
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_055T01_9000001114_08090cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08090cztM0_level2_quad_clean.evt
Size (bytes)480,286,08076,127,040
Size458.0 MB 72.6 MB
Events in quadrant A3,167,206467,509
Events in quadrant B3,387,670478,865
Events in quadrant C3,214,611484,314
Events in quadrant D4,356,771443,390

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134583
B0141372
C0136252
D0171622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6173801.295966%
B61731021.652357%
C6173641.036773%
D61734557.370808%

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 7473 6174 4 4 0.05% 0.06%
B 7473 6174 13 13 0.17% 0.21%
C 7473 6174 0 0 0.00% 0.00%
D 7473 6173 270 270 3.61% 4.37%

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 13 164 52810 321.83 804 790 161.6
A 15 223 16743 98.7 804 790 161.6
A 0 226 7575 41.98 804 790 161.6
B 11 51 90354 590.76 811 792 151.6
B 10 16 75400 492.12 811 792 151.6
B 0 231 46671 302.62 811 792 151.6
C 1 16 102137 555.46 796 801 182.4
C 13 61 6153 29.34 796 801 182.4
C 8 222 3575 15.21 796 801 182.4
D 1 52 1344783 6624.31 762 746 202.9
D 7 71 104646 512.09 762 746 202.9
D 2 234 19407 91.97 762 746 202.9

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