ASTROSAT CZTI

Data Quality Report

Orbit 43024

Creation date: 2024-06-27T22:47:02.964743
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/AS1T05_148T01_9000005838_43024cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43024cztM0_level2_quad_clean.evt
Size (bytes)462,571,200108,371,520
Size441.1 MB 103.4 MB
Events in quadrant A3,583,797803,754
Events in quadrant B5,363,056703,578
Events in quadrant C2,724,035780,910
Events in quadrant D5,058,354638,940

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140252
B0193782
C0111202
D0185274

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50681533.018942%
B506891718.093923%
C506840.078927%
D506766113.045194%

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 7100 5069 111 111 1.56% 2.19%
B 7100 5069 736 736 10.37% 14.52%
C 7100 5069 0 0 0.00% 0.00%
D 7099 5068 533 533 7.51% 10.52%

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 10 83 570148 3935.67 663 654 144.7
A 15 237 447976 3091.36 663 654 144.7
A 13 6 8682 55.48 663 654 144.7
B 0 186 2477745 19280.94 624 612 128.5
B 0 189 245183 1903.64 624 612 128.5
B 5 255 73178 564.82 624 612 128.5
C 15 214 221313 1390.69 640 648 158.7
C 13 61 4247 22.68 640 648 158.7
C 15 111 3693 19.19 640 648 158.7
D 1 52 1486877 9465.37 606 589 157.0
D 13 249 780785 4968.65 606 589 157.0
D 12 233 214412 1361.72 606 589 157.0

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