ASTROSAT CZTI

Data Quality Report

Orbit 14360

Creation date: 2024-06-27T16:53:57.976871
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/AS1A04_048T01_9000002114_14360cztM0_level2.evt modeM0/AS1A04_048T01_9000002114_14360cztM0_level2_quad_clean.evt
Size (bytes)497,355,84068,999,040
Size474.3 MB 65.8 MB
Events in quadrant A3,162,578416,178
Events in quadrant B3,715,580414,955
Events in quadrant C3,893,824408,909
Events in quadrant D3,857,549403,914

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132213
B0148632
C0161052
D0155042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6379681.065998%
B63792053.213670%
C6379811.269792%
D63792764.326697%

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 8811 6381 0 0 0.00% 0.00%
B 8811 6381 83 83 0.94% 1.30%
C 8811 6381 1 1 0.01% 0.02%
D 8811 6381 182 182 2.07% 2.85%

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 12 189 20405 120.37 813 795 162.9
A 8 15 10284 58.24 813 795 162.9
A 0 226 7167 39.11 813 795 162.9
B 10 16 394880 2580.08 810 792 152.7
B 0 229 101016 656.16 810 792 152.7
B 0 189 23767 150.42 810 792 152.7
C 3 233 768714 4240.53 795 800 181.1
C 3 232 8288 41.35 795 800 181.1
C 14 234 6651 32.31 795 800 181.1
D 5 222 804303 4341.08 781 763 185.1
D 2 120 35386 187.05 781 763 185.1
D 1 52 27005 141.77 781 763 185.1

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