ASTROSAT CZTI

Data Quality Report

Orbit 42744

Creation date: 2024-06-27T22:43:43.802976
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_013T01_9000005822_42744cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42744cztM0_level2_quad_clean.evt
Size (bytes)384,808,32085,639,680
Size367.0 MB 81.7 MB
Events in quadrant A2,987,894595,082
Events in quadrant B3,440,029543,714
Events in quadrant C4,346,615550,353
Events in quadrant D3,051,533527,612

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121041
B0137871
C0164661
D0129441

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5369220.409760%
B53704969.236499%
C53694157.729559%
D53692133.967219%

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 6951 5370 12 12 0.17% 0.22%
B 6952 5371 298 298 4.29% 5.55%
C 6950 5369 383 383 5.51% 7.13%
D 6951 5370 212 212 3.05% 3.95%

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 538559 4406.87 591 578 122.1
A 13 248 86792 706.22 591 578 122.1
A 15 237 31807 255.81 591 578 122.1
B 4 81 1190630 11130.69 543 527 106.9
B 5 172 43188 399.0 543 527 106.9
B 0 230 31559 290.23 543 527 106.9
C 0 239 1026871 7884.19 556 560 130.2
C 4 254 844257 6481.33 556 560 130.2
C 15 214 216788 1661.08 556 560 130.2
D 13 249 523559 3818.41 560 544 137.0
D 12 233 91086 661.03 560 544 137.0
D 5 70 75684 548.58 560 544 137.0

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