ASTROSAT CZTI

Data Quality Report

Orbit 14066

Creation date: 2024-06-27T16:49:54.974684
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/AS1G08_055T01_9000002076_14066cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14066cztM0_level2_quad_clean.evt
Size (bytes)484,896,96091,212,480
Size462.4 MB 87.0 MB
Events in quadrant A3,152,055595,804
Events in quadrant B3,409,191596,749
Events in quadrant C3,171,894582,945
Events in quadrant D4,533,348556,018

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133392
B0140071
C0133831
D0178951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6176851.376295%
B61761201.943005%
C6176721.165803%
D61761582.558290%

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 7302 6177 0 0 0.00% 0.00%
B 7302 6177 18 18 0.25% 0.29%
C 7302 6178 3 3 0.04% 0.05%
D 7302 6177 65 65 0.89% 1.05%

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 12 189 123047 777.66 784 770 157.2
A 8 15 14691 88.54 784 770 157.2
A 0 226 7026 39.79 784 770 157.2
B 4 80 67417 460.61 778 759 144.7
B 4 48 55658 379.36 778 759 144.7
B 0 189 45746 310.86 778 759 144.7
C 3 233 202843 1168.87 754 758 172.9
C 0 207 25941 145.66 754 758 172.9
C 13 61 5416 26.94 754 758 172.9
D 10 172 368319 1959.4 749 730 187.6
D 1 52 354790 1887.29 749 730 187.6
D 8 195 280419 1490.86 749 730 187.6

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