ASTROSAT CZTI

Data Quality Report

Orbit 04289

Creation date: 2024-06-27T14:39:58.113634
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/AS1G05_256T01_9000000538_04289cztM0_level2.evt modeM0/AS1G05_256T01_9000000538_04289cztM0_level2_quad_clean.evt
Size (bytes)670,855,680117,495,360
Size639.8 MB 112.1 MB
Events in quadrant A5,220,004772,232
Events in quadrant B4,184,173765,272
Events in quadrant C4,381,094746,834
Events in quadrant D6,013,221740,942

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210004
B0176121
C0185451
D0233451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76554776.231221%
B76561281.671891%
C76563424.467085%
D76564676.099791%

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 7701 7657 351 351 4.56% 4.58%
B 7701 7657 27 27 0.35% 0.35%
C 7701 7656 202 202 2.62% 2.64%
D 7701 7657 210 210 2.73% 2.74%

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 0 199 1435129 8291.02 844 824 173.0
A 15 234 224148 1290.93 844 824 173.0
A 0 226 148334 852.68 844 824 173.0
B 14 167 240673 1448.51 867 845 165.6
B 10 16 207608 1248.81 867 845 165.6
B 0 184 74764 446.46 867 845 165.6
C 9 144 1015785 5301.52 823 826 191.4
C 9 247 122608 636.11 823 826 191.4
C 6 80 12381 60.36 823 826 191.4
D 2 232 1939570 9756.74 826 801 198.7
D 13 53 380628 1911.46 826 801 198.7
D 2 136 213234 1069.05 826 801 198.7

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