ASTROSAT CZTI

Data Quality Report

Orbit 03273

Creation date: 2024-06-27T14:26:58.430843
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_002T02_9000000444_03273cztM0_level2.evt modeM0/AS1G05_002T02_9000000444_03273cztM0_level2_quad_clean.evt
Size (bytes)497,882,88073,321,920
Size474.8 MB 69.9 MB
Events in quadrant A3,467,829432,132
Events in quadrant B4,253,355431,642
Events in quadrant C3,590,774437,713
Events in quadrant D3,284,314424,227

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153603
B0173722
C0154402
D0150652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71041562.195946%
B71041822.561937%
C71041291.815878%
D7104961.351351%

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 9379 7106 42 42 0.45% 0.59%
B 9379 7106 18 18 0.19% 0.25%
C 9379 7106 22 22 0.23% 0.31%
D 9379 7106 15 15 0.16% 0.21%

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 185852 1107.1 821 802 167.1
A 0 118 63464 374.89 821 802 167.1
A 14 249 44809 263.28 821 802 167.1
B 15 204 819718 5188.61 836 816 157.8
B 2 249 139298 877.43 836 816 157.8
B 5 200 27044 166.18 836 816 157.8
C 14 48 168252 907.75 804 805 184.5
C 2 53 83464 448.1 804 805 184.5
C 1 16 70940 380.21 804 805 184.5
D 13 239 74029 382.25 799 775 191.6
D 13 223 73792 381.01 799 775 191.6
D 5 233 33176 169.07 799 775 191.6

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