ASTROSAT CZTI

Data Quality Report

Orbit 05180

Creation date: 2024-06-27T14:52:21.329681
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_214T01_9000000652_05180cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05180cztM0_level2_quad_clean.evt
Size (bytes)426,841,92065,793,600
Size407.1 MB 62.7 MB
Events in quadrant A3,015,357389,224
Events in quadrant B3,250,205398,900
Events in quadrant C3,041,862394,048
Events in quadrant D3,189,588368,640

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130643
B0136212
C0131382
D0139292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6318390.617284%
B6318671.060462%
C6318210.332384%
D6318821.297879%

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 7548 6319 2 2 0.03% 0.03%
B 7548 6319 12 12 0.16% 0.19%
C 7548 6319 0 0 0.00% 0.00%
D 7548 6319 50 50 0.66% 0.79%

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 50 24355 148.86 773 758 158.5
A 0 247 9264 53.66 773 758 158.5
A 0 226 8323 47.72 773 758 158.5
B 4 80 108323 722.39 786 771 148.9
B 4 48 32976 216.31 786 771 148.9
B 15 54 18663 120.17 786 771 148.9
C 1 16 81225 457.69 753 758 175.8
C 12 4 10369 54.67 753 758 175.8
C 8 128 6342 31.76 753 758 175.8
D 2 33 166683 916.27 739 717 181.1
D 14 34 62886 343.22 739 717 181.1
D 2 136 53900 293.61 739 717 181.1

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