ASTROSAT CZTI

Data Quality Report

Orbit 38908

Creation date: 2024-06-27T21:58:01.612084
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/AS1T05_064T01_9000005416_38908cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38908cztM0_level2_quad_clean.evt
Size (bytes)371,059,20094,034,880
Size353.9 MB 89.7 MB
Events in quadrant A2,866,797647,685
Events in quadrant B2,642,450651,627
Events in quadrant C2,670,511626,790
Events in quadrant D5,134,056542,306

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119303
B0115382
C0112512
D0191112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5416170.313885%
B5416460.849335%
C5416140.258493%
D54165009.231905%

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 7209 5417 8 8 0.11% 0.15%
B 7209 5417 23 23 0.32% 0.42%
C 7209 5417 8 8 0.11% 0.15%
D 7209 5416 484 484 6.71% 8.94%

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 441070 3562.73 611 598 123.6
A 13 248 33140 263.21 611 598 123.6
A 12 189 16712 130.34 611 598 123.6
B 5 184 177317 1530.61 605 588 115.5
B 5 172 20520 172.63 605 588 115.5
B 0 199 17169 143.6 605 588 115.5
C 15 214 238984 1721.0 599 603 138.5
C 14 254 77226 553.18 599 603 138.5
C 0 10 7928 52.88 599 603 138.5
D 12 227 985618 7121.95 573 557 138.3
D 12 235 589875 4260.74 573 557 138.3
D 2 249 531988 3842.22 573 557 138.3

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