ASTROSAT CZTI

Data Quality Report

Orbit 13865

Creation date: 2024-06-27T16:47:07.285010
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/AS1A04_115T02_9000002042_13865cztM0_level2.evt modeM0/AS1A04_115T02_9000002042_13865cztM0_level2_quad_clean.evt
Size (bytes)620,360,64092,128,320
Size591.6 MB 87.9 MB
Events in quadrant A3,421,396591,672
Events in quadrant B3,385,322603,676
Events in quadrant C3,312,796597,305
Events in quadrant D8,226,288541,576

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143773
B0141452
C0139692
D0290162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65281312.006740%
B65281241.899510%
C6528891.363358%
D652882712.668505%

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 8979 6529 0 0 0.00% 0.00%
B 8979 6529 12 12 0.13% 0.18%
C 8979 6529 1 1 0.01% 0.02%
D 8979 6529 898 898 10.00% 13.75%

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 23 158413 927.95 841 824 169.8
A 0 226 17045 95.52 841 824 169.8
A 1 162 12992 71.65 841 824 169.8
B 4 80 65478 405.64 840 821 159.4
B 4 48 21099 127.22 840 821 159.4
B 12 111 18761 112.55 840 821 159.4
C 3 233 77563 401.1 829 834 191.3
C 13 61 5842 26.18 829 834 191.3
C 14 234 4143 17.3 829 834 191.3
D 10 157 4994817 26501.01 794 778 188.4
D 13 189 99611 524.46 794 778 188.4
D 5 222 71739 376.56 794 778 188.4

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