ASTROSAT CZTI

Data Quality Report

Orbit 37302

Creation date: 2024-06-27T21:38:06.943613
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/AS1A10_103T07_9000005302_37302cztM0_level2.evt modeM0/AS1A10_103T07_9000005302_37302cztM0_level2_quad_clean.evt
Size (bytes)392,909,76051,796,800
Size374.7 MB 49.4 MB
Events in quadrant A2,842,226295,947
Events in quadrant B2,801,575308,418
Events in quadrant C2,975,818305,407
Events in quadrant D2,913,448281,321

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115793
B0114682
C0117282
D0121332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A538190.167255%
B5381500.929195%
C5381611.133618%
D53811272.360156%

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 7324 5382 4 4 0.05% 0.07%
B 7324 5382 18 18 0.25% 0.33%
C 7324 5382 54 54 0.74% 1.00%
D 7324 5382 94 94 1.28% 1.75%

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 265758 2024.04 651 641 131.0
A 9 143 30060 224.6 651 641 131.0
A 13 248 13871 101.0 651 641 131.0
B 12 18 112271 902.85 655 639 123.6
B 0 213 41419 329.82 655 639 123.6
B 4 171 23065 181.38 655 639 123.6
C 15 214 225922 1501.83 648 654 150.0
C 0 10 201584 1339.57 648 654 150.0
C 14 254 11039 69.24 648 654 150.0
D 10 199 296355 1933.05 633 617 153.0
D 13 249 88476 574.28 633 617 153.0
D 2 249 33708 216.29 633 617 153.0

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