ASTROSAT CZTI

Data Quality Report

Orbit 43168

Creation date: 2024-06-27T22:48:48.667915
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_001T10_9000005856_43168cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43168cztM0_level2_quad_clean.evt
Size (bytes)2,067,788,160529,260,480
Size1.9 GB 504.7 MB
Events in quadrant A20,049,2763,525,599
Events in quadrant B15,642,8803,648,092
Events in quadrant C15,539,7813,466,601
Events in quadrant D22,740,1783,100,212

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01096
B01094
C01095
D01095

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06888
B06875
C06888
D06886

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820071150
B071535724
C069606741
D0931971330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A332197752.333002%
B332473771.133937%
C33234420.126377%
D3321818835.668613%

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 44486 33286 519 519 1.17% 1.56%
B 44527 33306 280 280 0.63% 0.84%
C 44522 33314 21 21 0.05% 0.06%
D 44499 33286 1644 1644 3.69% 4.94%

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 3019991 4255.18 3503 3427 708.9
A 15 237 1553108 2185.99 3503 3427 708.9
A 15 222 951807 1337.79 3503 3427 708.9
B 0 229 1375201 2081.53 3492 3396 659.0
B 0 230 161722 240.24 3492 3396 659.0
B 0 189 152156 225.72 3492 3396 659.0
C 15 214 1403229 1773.59 3412 3425 789.3
C 8 79 622072 783.84 3412 3425 789.3
C 7 220 124552 153.47 3412 3425 789.3
D 1 52 4436465 5412.84 3366 3270 819.0
D 12 16 1907776 2325.36 3366 3270 819.0
D 1 47 1287006 1567.42 3366 3270 819.0

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