ASTROSAT CZTI

Data Quality Report

Orbit 24290

Creation date: 2024-06-27T19:04:24.186601
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/AS1A07_047T08_9000003590_24290cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24290cztM0_level2_quad_clean.evt
Size (bytes)592,819,200142,050,240
Size565.4 MB 135.5 MB
Events in quadrant A3,290,229987,735
Events in quadrant B3,587,5311,006,233
Events in quadrant C3,927,203958,985
Events in quadrant D6,709,767897,115

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135532
B0144682
C0160122
D0245472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6483520.802098%
B64831502.313744%
C64831712.637668%
D64835077.820453%

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 7718 6483 0 0 0.00% 0.00%
B 7718 6484 39 39 0.51% 0.60%
C 7718 6483 12 12 0.16% 0.19%
D 7718 6483 416 416 5.39% 6.42%

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 13 254 10015 54.79 851 835 167.6
A 0 226 7082 37.28 851 835 167.6
A 3 137 6911 36.26 851 835 167.6
B 12 17 256085 1636.77 849 830 156.0
B 12 111 18051 110.43 849 830 156.0
B 11 111 16081 97.79 849 830 156.0
C 7 247 387812 2045.17 830 837 189.2
C 2 16 164668 865.85 830 837 189.2
C 14 238 136778 718.45 830 837 189.2
D 8 195 1851897 9515.53 817 794 194.5
D 1 52 1669323 8577.02 817 794 194.5
D 12 218 42043 212.04 817 794 194.5

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