ASTROSAT CZTI

Data Quality Report

Orbit 07364

Creation date: 2024-06-27T15:18:57.694285
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_157T02_9000001008_07364cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07364cztM0_level2_quad_clean.evt
Size (bytes)3,469,429,440544,314,240
Size3.2 GB 519.1 MB
Events in quadrant A23,871,7403,342,605
Events in quadrant B22,395,0173,435,869
Events in quadrant C25,561,2803,377,672
Events in quadrant D30,086,1253,116,480

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010343810
B0979569
C01060109
D012254412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09520
B09520
C09520
D09520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0450
B0450
C0450
D0450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4680416973.625758%
B468048451.805401%
C468046481.384497%
D4680332486.939726%

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 57521 46810 746 746 1.30% 1.59%
B 57521 46812 20 20 0.03% 0.04%
C 57521 46810 1 1 0.00% 0.00%
D 57521 46811 2579 2579 4.48% 5.51%

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 15 234 2661506 2418.47 5445 5322 1098.3
A 15 239 184985 163.58 5445 5322 1098.3
A 0 226 51989 42.49 5445 5322 1098.3
B 0 214 497215 463.13 5560 5421 1061.9
B 4 81 176071 160.7 5560 5421 1061.9
B 11 51 129816 117.14 5560 5421 1061.9
C 9 68 4072731 3261.64 5371 5394 1247.0
C 12 80 401464 317.61 5371 5394 1247.0
C 8 229 62296 45.63 5371 5394 1247.0
D 1 52 7195560 5652.11 5191 5032 1272.2
D 2 216 1390372 1088.95 5191 5032 1272.2
D 14 34 679301 530.01 5191 5032 1272.2

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