ASTROSAT CZTI

Data Quality Report

Orbit 19092

Creation date: 2024-06-27T17:58:57.440850
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_046T01_9000002834_19092cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19092cztM0_level2_quad_clean.evt
Size (bytes)462,142,080105,940,800
Size440.7 MB 101.0 MB
Events in quadrant A3,150,229692,513
Events in quadrant B3,616,214721,285
Events in quadrant C3,479,816693,379
Events in quadrant D3,323,340663,145

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132301
B0146211
C0140841
D0138441

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6278230.366359%
B62781872.978656%
C62781091.736222%
D6278290.461931%

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 7603 6279 0 0 0.00% 0.00%
B 7603 6279 32 32 0.42% 0.51%
C 7603 6279 3 3 0.04% 0.05%
D 7603 6279 10 10 0.13% 0.16%

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 7441 40.46 817 800 164.1
A 0 226 7093 38.34 817 800 164.1
A 3 137 5975 31.53 817 800 164.1
B 6 36 119643 773.35 820 802 153.7
B 4 216 98937 638.61 820 802 153.7
B 0 189 74485 479.49 820 802 153.7
C 3 233 201983 1075.19 802 812 187.1
C 14 238 125745 667.72 802 812 187.1
C 0 207 27588 143.11 802 812 187.1
D 1 52 169664 878.96 797 777 192.1
D 7 238 86110 444.11 797 777 192.1
D 11 176 31622 160.53 797 777 192.1

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