ASTROSAT CZTI

Data Quality Report

Orbit 33334

Creation date: 2024-06-27T20:47:40.028763
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/AS1T04_071T01_9000004782_33334cztM0_level2.evt modeM0/AS1T04_071T01_9000004782_33334cztM0_level2_quad_clean.evt
Size (bytes)370,143,36054,717,120
Size353.0 MB 52.2 MB
Events in quadrant A1,915,655358,059
Events in quadrant B2,866,065345,841
Events in quadrant C2,650,005347,382
Events in quadrant D3,508,505325,425

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080311
B0109781
C0105601
D0131641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3971100.251826%
B39713017.579955%
C3971320.805842%
D39711012.543440%

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 3971 3971 1 1 0.03% 0.03%
B 3971 3971 210 210 5.29% 5.29%
C 3971 3971 31 31 0.78% 0.78%
D 3971 3971 83 83 2.09% 2.09%

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 15 169 8328 78.92 492 483 99.4
A 13 6 7323 68.81 492 483 99.4
A 13 254 5659 52.07 492 483 99.4
B 0 219 529815 5825.0 474 463 90.9
B 5 172 358860 3943.81 474 463 90.9
B 15 85 69794 762.92 474 463 90.9
C 10 49 399121 3693.5 467 472 107.9
C 15 214 184515 1705.17 467 472 107.9
C 15 208 67199 618.23 467 472 107.9
D 8 195 1083152 9482.78 465 452 114.2
D 2 250 261401 2285.51 465 452 114.2
D 12 6 107435 937.01 465 452 114.2

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