ASTROSAT CZTI

Data Quality Report

Orbit 45034

Creation date: 2024-06-27T23:09:12.880493
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/AS1A13_020T01_9000006040_45034cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45034cztM0_level2_quad_clean.evt
Size (bytes)1,847,243,520332,933,760
Size1.7 GB 317.5 MB
Events in quadrant A16,940,8642,310,590
Events in quadrant B12,820,1382,329,260
Events in quadrant C10,804,6822,290,509
Events in quadrant D26,115,8461,634,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04460
B04460
C04460
D04460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0676104
B0533124
C0482356
D0928434

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A219983901.772888%
B219989034.104919%
C219983591.631967%
D21998438819.947268%

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 23168 22003 14 14 0.06% 0.06%
B 23168 22003 371 371 1.60% 1.69%
C 23168 22003 231 231 1.00% 1.05%
D 23168 22002 3568 3568 15.40% 16.22%

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 7352682 14532.09 2442 2385 505.8
A 13 248 94222 181.57 2442 2385 505.8
A 0 243 37735 69.89 2442 2385 505.8
B 0 189 1402074 2961.96 2415 2340 472.6
B 12 48 597627 1259.68 2415 2340 472.6
B 5 255 389582 819.44 2415 2340 472.6
C 14 254 1178399 2079.34 2407 2420 565.6
C 2 14 95182 164.02 2407 2420 565.6
C 1 3 51550 86.87 2407 2420 565.6
D 13 174 5600981 10154.93 2187 2123 551.3
D 4 221 2813565 5099.25 2187 2123 551.3
D 5 235 2288820 4147.5 2187 2123 551.3

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