ASTROSAT CZTI

Data Quality Report

Orbit 03287

Creation date: 2024-06-27T14:27:09.758946
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_228T02_9000000446_03287cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03287cztM0_level2_quad_clean.evt
Size (bytes)471,470,40062,130,240
Size449.6 MB 59.3 MB
Events in quadrant A3,121,012355,998
Events in quadrant B4,322,873353,682
Events in quadrant C3,299,053358,152
Events in quadrant D3,084,133349,733

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137063
B0172292
C0142372
D0139722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6649540.812152%
B66491241.864942%
C6649961.443826%
D6649520.782072%

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 7809 6650 2 2 0.03% 0.03%
B 7809 6650 21 21 0.27% 0.32%
C 7809 6650 20 20 0.26% 0.30%
D 7809 6650 16 16 0.20% 0.24%

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 0 118 29923 175.95 800 783 165.6
A 0 226 10966 61.49 800 783 165.6
A 12 194 8453 46.31 800 783 165.6
B 15 204 924922 5887.6 809 790 157.0
B 2 249 174699 1107.97 809 790 157.0
B 4 81 67519 425.13 809 790 157.0
C 14 223 94453 510.83 778 783 183.4
C 6 80 88752 479.74 778 783 183.4
C 1 192 50030 268.57 778 783 183.4
D 13 239 69706 367.46 774 752 187.7
D 5 233 37386 195.22 774 752 187.7
D 13 223 26649 138.01 774 752 187.7

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