ASTROSAT CZTI

Data Quality Report

Orbit 42592

Creation date: 2024-06-27T22:41:57.222286
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/AS1A12_061T07_9000005818_42592cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42592cztM0_level2_quad_clean.evt
Size (bytes)304,176,96090,357,120
Size290.1 MB 86.2 MB
Events in quadrant A2,837,224600,993
Events in quadrant B2,396,333617,454
Events in quadrant C2,616,521598,524
Events in quadrant D2,996,033547,026

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114862
B0108662
C0110682
D0125832

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A530690.169619%
B530690.169619%
C5306180.339239%
D5306490.923483%

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 7429 5307 2 2 0.03% 0.04%
B 7429 5307 3 3 0.04% 0.06%
C 7429 5307 16 16 0.22% 0.30%
D 7429 5307 48 48 0.65% 0.90%

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 546259 4559.2 589 577 119.7
A 3 137 6462 49.17 589 577 119.7
A 13 6 6358 48.3 589 577 119.7
B 0 245 32064 284.18 581 566 110.8
B 5 255 30293 268.21 581 566 110.8
B 15 85 22905 201.55 581 566 110.8
C 15 214 222418 1652.81 578 582 134.2
C 0 207 132346 981.72 578 582 134.2
C 12 249 4122 26.38 578 582 134.2
D 1 52 247409 1762.1 581 566 140.1
D 2 16 178721 1271.77 581 566 140.1
D 12 233 83908 594.94 581 566 140.1

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