ASTROSAT CZTI

Data Quality Report

Orbit 33324

Creation date: 2024-06-27T20:47:34.786582
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/AS1T04_071T01_9000004782_33324cztM0_level2.evt modeM0/AS1T04_071T01_9000004782_33324cztM0_level2_quad_clean.evt
Size (bytes)544,014,72076,256,640
Size518.8 MB 72.7 MB
Events in quadrant A2,762,081524,581
Events in quadrant B4,546,674478,520
Events in quadrant C4,909,576475,470
Events in quadrant D3,926,145486,500

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110142
B0166521
C0178921
D0150631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4896480.980392%
B489673014.910131%
C48964549.272876%
D4896691.409314%

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 6958 4897 38 38 0.55% 0.78%
B 6958 4897 526 526 7.56% 10.74%
C 6958 4897 413 413 5.94% 8.43%
D 6958 4897 53 53 0.76% 1.08%

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 15 169 338405 2805.91 605 594 120.4
A 12 16 65612 540.05 605 594 120.4
A 12 194 15115 120.61 605 594 120.4
B 5 172 1264497 11767.64 564 551 107.4
B 0 219 919220 8553.03 564 551 107.4
B 15 85 67622 624.45 564 551 107.4
C 10 49 837548 6528.11 557 562 128.2
C 0 207 798665 6224.84 557 562 128.2
C 1 23 673364 5247.55 557 562 128.2
D 8 195 1277294 8395.09 577 567 152.1
D 2 250 78445 512.08 577 567 152.1
D 12 6 50467 328.12 577 567 152.1

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