ASTROSAT CZTI

Data Quality Report

Orbit 43048

Creation date: 2024-06-27T22:47:20.157139
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_43048cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43048cztM0_level2_quad_clean.evt
Size (bytes)464,935,680105,762,240
Size443.4 MB 100.9 MB
Events in quadrant A3,697,360773,932
Events in quadrant B5,383,051613,400
Events in quadrant C2,985,103747,072
Events in quadrant D4,685,954655,242

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150262
B0199212
C0121542
D0179782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5903420.711503%
B5904122520.748645%
C5904200.338753%
D59042333.946477%

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 8859 5905 19 19 0.21% 0.32%
B 8860 5906 933 933 10.53% 15.80%
C 8860 5906 15 15 0.17% 0.25%
D 8860 5906 183 183 2.07% 3.10%

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 650476 4327.22 696 686 150.2
A 15 222 166455 1103.92 696 686 150.2
A 15 237 134634 892.01 696 686 150.2
B 0 186 2508174 20030.82 627 612 125.2
B 3 112 323613 2580.19 627 612 125.2
B 15 32 30638 239.85 627 612 125.2
C 15 214 261780 1582.55 676 684 165.0
C 14 254 67014 402.04 676 684 165.0
C 7 220 11603 66.18 676 684 165.0
D 2 16 1006592 5841.57 661 640 172.2
D 13 249 437543 2537.1 661 640 172.2
D 1 52 357684 2073.36 661 640 172.2

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