ASTROSAT CZTI

Data Quality Report

Orbit 19484

Creation date: 2024-06-27T18:03:20.066630
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/AS1A05_229T02_9000002890_19484cztM0_level2.evt modeM0/AS1A05_229T02_9000002890_19484cztM0_level2_quad_clean.evt
Size (bytes)581,112,00068,071,680
Size554.2 MB 64.9 MB
Events in quadrant A3,475,166414,280
Events in quadrant B3,725,352415,254
Events in quadrant C3,800,833396,758
Events in quadrant D6,150,498374,489

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141922
B0150332
C0153622
D0227062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65891241.881924%
B65891572.382759%
C65891512.291698%
D658996914.706329%

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 7779 6589 2 2 0.03% 0.03%
B 7779 6589 23 23 0.30% 0.35%
C 7779 6589 0 0 0.00% 0.00%
D 7779 6589 758 758 9.74% 11.50%

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 5 16 21870 118.19 890 871 177.7
A 11 29 21565 116.48 890 871 177.7
A 0 226 7890 39.51 890 871 177.7
B 3 112 177469 1073.21 876 857 164.6
B 12 111 19140 111.1 876 857 164.6
B 0 197 17980 104.05 876 857 164.6
C 3 233 224801 1155.93 840 847 193.7
C 9 221 168379 864.71 840 847 193.7
C 14 238 133361 683.96 840 847 193.7
D 7 238 1001673 5095.71 809 786 196.4
D 7 223 858829 4368.46 809 786 196.4
D 1 52 625926 3182.71 809 786 196.4

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