ASTROSAT CZTI

Data Quality Report

Orbit 41073

Creation date: 2024-06-27T22:24:07.053439
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_095T02_9000005596_41073cztM0_level2.fits modeM0/AS1A12_095T02_9000005596_41073cztM0_level2_quad_clean.evt
Size (bytes)358,623,36091,811,520
Size342.0 MB 87.6 MB
Events in quadrant A3,151,522617,233
Events in quadrant B2,681,665627,454
Events in quadrant C2,769,325600,002
Events in quadrant D4,233,731540,590

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128123
B0119192
C0118032
D0164782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5637180.319319%
B5637330.585418%
C5637370.656378%
D56372554.523683%

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 7100 5638 7 7 0.10% 0.12%
B 7100 5638 18 18 0.25% 0.32%
C 7100 5638 43 43 0.61% 0.76%
D 7100 5638 217 217 3.06% 3.85%

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 550025 4312.73 617 605 127.4
A 12 189 173604 1357.98 617 605 127.4
A 13 248 30170 232.07 617 605 127.4
B 5 255 145428 1205.43 615 599 120.1
B 0 186 60022 494.58 615 599 120.1
B 0 190 21675 175.41 615 599 120.1
C 15 214 238919 1683.54 603 607 141.6
C 0 10 121888 856.78 603 607 141.6
C 14 254 39347 273.68 603 607 141.6
D 12 79 1424826 9682.84 595 576 147.1
D 2 249 157014 1063.55 595 576 147.1
D 13 171 89255 602.89 595 576 147.1

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