ASTROSAT CZTI

Data Quality Report

Orbit 16211

Creation date: 2024-06-27T17:19:22.995237
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/AS1T02_109T01_9000002386_16211cztM0_level2.evt modeM0/AS1T02_109T01_9000002386_16211cztM0_level2_quad_clean.evt
Size (bytes)433,370,88073,918,080
Size413.3 MB 70.5 MB
Events in quadrant A3,110,280467,577
Events in quadrant B3,176,770474,146
Events in quadrant C3,046,879449,901
Events in quadrant D3,398,235442,801

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125392
B0126441
C0122361
D0136991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5783821.417949%
B5783931.608162%
C5783841.452533%
D5783871.504409%

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 7094 5785 4 4 0.06% 0.07%
B 7094 5785 12 12 0.17% 0.21%
C 7094 5785 0 0 0.00% 0.00%
D 7094 5785 25 25 0.35% 0.43%

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 4 2 79011 500.78 786 772 156.2
A 0 226 7181 41.02 786 772 156.2
A 12 194 5879 32.69 786 772 156.2
B 0 189 46535 314.55 774 758 145.5
B 4 173 43632 294.6 774 758 145.5
B 0 198 38467 259.11 774 758 145.5
C 14 238 115583 673.84 741 749 170.4
C 3 233 21601 122.36 741 749 170.4
C 7 247 12960 71.65 741 749 170.4
D 1 52 261054 1390.59 764 741 187.2
D 2 233 204650 1089.28 764 741 187.2
D 2 234 20205 103.98 764 741 187.2

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