ASTROSAT CZTI

Data Quality Report

Orbit 10784

Creation date: 2024-06-27T16:03:51.016536
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/AS1G07_062T01_9000001560_10784cztM0_level2.evt modeM0/AS1G07_062T01_9000001560_10784cztM0_level2_quad_clean.evt
Size (bytes)233,328,96054,766,080
Size222.5 MB 52.2 MB
Events in quadrant A1,454,676370,438
Events in quadrant B1,910,461369,290
Events in quadrant C1,330,378374,043
Events in quadrant D2,179,097344,620

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0618617
B0753121
C0584936
D0844915

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0602
B0600
C0600
D0600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2794893.185397%
B27912699.638123%
C2784712.550287%
D27942689.591983%

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 4051 2802 6 6 0.15% 0.21%
B 4051 2802 105 105 2.59% 3.75%
C 4051 2802 0 0 0.00% 0.00%
D 4050 2801 123 123 3.04% 4.39%

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 15 174 88066 1219.29 350 342 71.9
A 1 162 8518 113.64 350 342 71.9
A 0 226 3279 40.82 350 342 71.9
B 4 239 539359 8247.74 342 334 65.4
B 15 204 16056 240.57 342 334 65.4
B 0 219 8556 125.81 342 334 65.4
C 8 222 4076 47.78 339 340 78.2
C 13 61 2774 31.13 339 340 78.2
C 0 207 1747 18.0 339 340 78.2
D 10 199 322166 4072.81 330 320 79.0
D 13 104 190747 2409.76 330 320 79.0
D 8 195 166637 2104.66 330 320 79.0

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