ASTROSAT CZTI

Data Quality Report

Orbit 48039

Creation date: 2024-08-16T03:11:21.492349
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_217T01_9000006390_48039cztM0_level2.fits modeM0/AS1T05_217T01_9000006390_48039cztM0_level2_quad_clean.evt
Size (bytes)463,533,120106,200,000
Size442.1 MB 101.3 MB
Events in quadrant A7,042,713684,948
Events in quadrant B3,175,022731,775
Events in quadrant C2,804,812712,940
Events in quadrant D3,636,111637,069

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251712
B0140962
C0131672
D0156092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64374306.680130%
B64371622.516700%
C6437270.419450%
D64372173.371136%

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 7577 6438 140 140 1.85% 2.17%
B 7577 6438 70 70 0.92% 1.09%
C 7577 6438 0 0 0.00% 0.00%
D 7577 6438 151 151 1.99% 2.35%

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 4181024 28835.0 703 688 145.0
A 0 31 98551 675.03 703 688 145.0
A 0 243 30043 202.48 703 688 145.0
B 5 32 229350 1665.88 707 685 137.3
B 7 221 66763 481.39 707 685 137.3
B 0 198 38520 275.64 707 685 137.3
C 12 2 20072 119.95 699 702 161.5
C 15 208 17271 102.6 699 702 161.5
C 14 67 12278 71.68 699 702 161.5
D 2 249 298961 1734.64 691 669 172.0
D 11 192 143422 830.14 691 669 172.0
D 11 224 111676 645.53 691 669 172.0

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