ASTROSAT CZTI

Data Quality Report

Orbit 07151

Creation date: 2024-06-27T15:16:12.746404
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/AS1G06_029T02_9000000974_07151cztM0_level2.evt modeM0/AS1G06_029T02_9000000974_07151cztM0_level2_quad_clean.evt
Size (bytes)405,527,04075,070,080
Size386.7 MB 71.6 MB
Events in quadrant A2,834,683466,844
Events in quadrant B2,882,490479,216
Events in quadrant C2,802,240470,353
Events in quadrant D3,363,554447,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122152
B0123041
C0123251
D0136941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5863821.398601%
B5863631.074535%
C5863370.631076%
D5863901.535050%

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 7033 5863 0 0 0.00% 0.00%
B 7033 5863 0 0 0.00% 0.00%
C 7033 5864 7 7 0.10% 0.12%
D 7033 5864 33 33 0.47% 0.56%

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 13 248 40527 272.73 714 698 146.0
A 14 111 33085 221.77 714 698 146.0
A 8 15 10991 70.48 714 698 146.0
B 0 214 49980 361.07 713 697 136.5
B 0 219 39139 281.65 713 697 136.5
B 4 81 15208 106.32 713 697 136.5
C 4 254 105811 658.8 688 692 159.6
C 12 4 5682 31.27 688 692 159.6
C 13 61 5448 29.81 688 692 159.6
D 2 216 485523 2840.83 691 669 170.7
D 8 195 194527 1135.84 691 669 170.7
D 2 136 49987 288.96 691 669 170.7

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