ASTROSAT CZTI

Data Quality Report

Orbit 10782

Creation date: 2024-06-27T16:03:39.368068
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/AS1G07_014T02_9000001556_10782cztM0_level2.evt modeM0/AS1G07_014T02_9000001556_10782cztM0_level2_quad_clean.evt
Size (bytes)248,143,68042,416,640
Size236.6 MB 40.5 MB
Events in quadrant A1,677,825264,305
Events in quadrant B2,139,337260,724
Events in quadrant C1,612,673261,059
Events in quadrant D1,846,661250,873

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072750
B085520
C071420
D078920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A349290.257732%
B34921203.436426%
C349230.085911%
D349240.114548%

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 3492 3492 0 0 0.00% 0.00%
B 3492 3492 87 87 2.49% 2.49%
C 3492 3492 0 0 0.00% 0.00%
D 3492 3492 2 2 0.06% 0.06%

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 13 253 4133 42.35 432 425 87.6
A 0 226 3981 40.61 432 425 87.6
A 1 162 3884 39.5 432 425 87.6
B 4 239 418865 5170.88 427 418 80.9
B 15 204 23736 288.15 427 418 80.9
B 0 214 22299 270.39 427 418 80.9
C 13 61 3136 28.46 413 416 95.6
C 14 234 2394 20.7 413 416 95.6
C 3 202 1061 6.75 413 416 95.6
D 8 195 200223 2009.12 410 399 99.5
D 5 222 31287 310.56 410 399 99.5
D 7 71 23355 230.81 410 399 99.5

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