ASTROSAT CZTI

Data Quality Report

Orbit 23013

Creation date: 2024-06-27T18:48:46.307325
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/AS1C05_002T02_9000003402_23013cztM0_level2.evt modeM0/AS1C05_002T02_9000003402_23013cztM0_level2_quad_clean.evt
Size (bytes)294,007,68061,937,280
Size280.4 MB 59.1 MB
Events in quadrant A1,941,719406,901
Events in quadrant B1,999,128421,165
Events in quadrant C2,026,470399,510
Events in quadrant D2,680,644382,670

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082941
B083691
C084821
D0104761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3756200.532481%
B3756391.038339%
C3756691.837061%
D37562316.150160%

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 5081 3757 0 0 0.00% 0.00%
B 5081 3757 9 9 0.18% 0.24%
C 5081 3757 12 12 0.24% 0.32%
D 5081 3757 161 161 3.17% 4.29%

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 11 47 29521 292.4 494 484 99.3
A 6 16 10606 101.93 494 484 99.3
A 13 254 4980 45.27 494 484 99.3
B 4 216 47080 498.35 493 482 93.5
B 0 189 19275 200.99 493 482 93.5
B 12 111 11098 113.54 493 482 93.5
C 10 9 83184 740.84 475 478 111.6
C 14 238 75311 670.31 475 478 111.6
C 10 22 7869 66.2 475 478 111.6
D 1 52 587125 5172.24 466 452 113.4
D 13 174 198936 1749.88 466 452 113.4
D 13 153 110300 968.44 466 452 113.4

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