ASTROSAT CZTI

Data Quality Report

Orbit 22307

Creation date: 2024-06-27T18:39:17.575205
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/AS1A07_049T01_9000003298_22307cztM0_level2.evt modeM0/AS1A07_049T01_9000003298_22307cztM0_level2_quad_clean.evt
Size (bytes)465,969,60072,204,480
Size444.4 MB 68.9 MB
Events in quadrant A3,378,161441,392
Events in quadrant B3,456,085451,023
Events in quadrant C3,374,740422,465
Events in quadrant D3,455,879412,691

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138903
B0140312
C0139512
D0144732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65771241.885358%
B65771612.447925%
C65771512.295880%
D6577881.337996%

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 7712 6578 0 0 0.00% 0.00%
B 7712 6578 1 1 0.01% 0.02%
C 7712 6578 0 0 0.00% 0.00%
D 7712 6578 19 19 0.25% 0.29%

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 13 254 8949 46.24 876 858 175.0
A 0 226 7552 38.26 876 858 175.0
A 3 137 7283 36.72 876 858 175.0
B 0 245 20223 117.25 875 856 165.2
B 12 111 19869 115.11 875 856 165.2
B 11 111 17562 101.14 875 856 165.2
C 14 238 132648 684.75 828 835 192.5
C 0 10 12175 58.91 828 835 192.5
C 13 61 5833 25.96 828 835 192.5
D 2 136 88644 429.76 839 813 204.4
D 10 103 65025 314.2 839 813 204.4
D 1 52 56098 270.51 839 813 204.4

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