ASTROSAT CZTI

Data Quality Report

Orbit 42144

Creation date: 2024-06-27T22:37:29.576351
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/AS1C07_001T11_9000005760_42144cztM0_level2.fits modeM0/AS1C07_001T11_9000005760_42144cztM0_level2_quad_clean.evt
Size (bytes)328,101,12086,011,200
Size312.9 MB 82.0 MB
Events in quadrant A2,821,801575,259
Events in quadrant B2,336,856593,639
Events in quadrant C2,403,210579,076
Events in quadrant D4,161,448477,752

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117042
B0110892
C0108552
D0165372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A540990.166389%
B5409120.221852%
C540820.036982%
D540862211.501479%

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 7260 5410 3 3 0.04% 0.06%
B 7260 5410 5 5 0.07% 0.09%
C 7259 5409 0 0 0.00% 0.00%
D 7259 5409 554 554 7.63% 10.24%

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 10 83 567090 4868.65 565 553 116.4
A 12 189 44927 381.34 565 553 116.4
A 15 223 16399 136.18 565 553 116.4
B 5 255 30470 272.42 565 549 109.8
B 15 35 22698 201.66 565 549 109.8
B 0 229 21182 187.86 565 549 109.8
C 15 214 224489 1747.41 553 558 128.2
C 12 249 8574 62.55 553 558 128.2
C 8 79 5087 35.34 553 558 128.2
D 12 233 1165756 9020.16 524 507 129.2
D 13 249 614605 4753.71 524 507 129.2
D 12 6 88738 682.99 524 507 129.2

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