ASTROSAT CZTI

Data Quality Report

Orbit 32412

Creation date: 2024-06-27T20:39:56.014243
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_059T01_9000004704_32412cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32412cztM0_level2_quad_clean.evt
Size (bytes)907,427,52063,630,720
Size865.4 MB 60.7 MB
Events in quadrant A2,935,062492,577
Events in quadrant B5,769,068472,261
Events in quadrant C14,129,37280,930
Events in quadrant D4,236,508452,458

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125662
B0213801
C0461191
D0166511

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6107380.622237%
B61074086.680858%
C6107517484.722450%
D61072123.471426%

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 7092 6108 0 0 0.00% 0.00%
B 7092 6108 147 147 2.07% 2.41%
C 7092 6105 4434 4434 62.52% 72.63%
D 7092 6108 196 196 2.76% 3.21%

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 6 17583 111.04 752 737 151.7
A 13 254 12437 77.12 752 737 151.7
A 13 6 11343 69.91 752 737 151.7
B 6 159 1690067 12218.26 729 710 138.3
B 4 80 733352 5298.83 729 710 138.3
B 5 172 333330 2405.67 729 710 138.3
C 3 233 13051152 222090.44 245 247 58.8
C 14 238 49702 841.59 245 247 58.8
C 0 10 28692 484.06 245 247 58.8
D 8 195 540700 3188.08 711 691 169.4
D 12 218 437057 2576.2 711 691 169.4
D 12 233 163445 960.86 711 691 169.4

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