ASTROSAT CZTI

Data Quality Report

Orbit 32844

Creation date: 2024-06-27T20:42:37.452114
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/AS1C06_002T09_9000004734_32844cztM0_level2.evt modeM0/AS1C06_002T09_9000004734_32844cztM0_level2_quad_clean.evt
Size (bytes)559,529,28096,736,320
Size533.6 MB 92.3 MB
Events in quadrant A2,373,970683,059
Events in quadrant B3,828,884658,957
Events in quadrant C4,867,171630,268
Events in quadrant D5,542,825611,739

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100353
B0145512
C0179412
D0200552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A491640.081367%
B49164639.418226%
C491653410.862490%
D49164559.255492%

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 7038 4917 0 0 0.00% 0.00%
B 7038 4917 317 317 4.50% 6.45%
C 7038 4917 383 383 5.44% 7.79%
D 7038 4917 412 412 5.85% 8.38%

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 13 254 10759 85.37 606 595 119.1
A 9 143 7272 56.08 606 595 119.1
A 14 238 5436 40.66 606 595 119.1
B 5 172 1169187 10830.27 583 569 107.9
B 0 219 109157 1006.35 583 569 107.9
B 12 1 106752 984.06 583 569 107.9
C 9 160 1842560 14428.45 556 561 127.7
C 3 233 670007 5243.8 556 561 127.7
C 0 10 107553 838.07 556 561 127.7
D 8 195 1294179 9348.0 562 549 138.4
D 2 250 786604 5680.17 562 549 138.4
D 7 80 468465 3381.25 562 549 138.4

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