ASTROSAT CZTI

Data Quality Report

Orbit 14559

Creation date: 2024-06-27T16:56:50.803229
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/AS1A04_089T01_9000002146_14559cztM0_level2.evt modeM0/AS1A04_089T01_9000002146_14559cztM0_level2_quad_clean.evt
Size (bytes)525,061,44078,664,320
Size500.7 MB 75.0 MB
Events in quadrant A4,067,383495,982
Events in quadrant B3,381,497502,145
Events in quadrant C3,648,900482,700
Events in quadrant D4,383,405468,220

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161183
B0140882
C0148122
D0171292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62021312.112222%
B6202931.499516%
C6202590.951306%
D62024567.352467%

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 7413 6204 1 1 0.01% 0.02%
B 7413 6204 4 4 0.05% 0.06%
C 7413 6204 0 0 0.00% 0.00%
D 7413 6204 376 376 5.07% 6.06%

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 0 23 534179 3223.6 825 810 165.5
A 8 15 224382 1351.24 825 810 165.5
A 12 189 53366 317.64 825 810 165.5
B 0 189 26536 165.42 827 809 155.5
B 0 219 26012 162.05 827 809 155.5
B 0 205 25008 155.6 827 809 155.5
C 3 233 499548 2692.95 805 809 185.2
C 8 128 6656 31.57 805 809 185.2
C 13 61 5778 26.83 805 809 185.2
D 12 110 754739 3688.97 788 772 204.4
D 10 199 541707 2646.66 788 772 204.4
D 12 235 34967 167.31 788 772 204.4

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