Table:
text: Global Positioning System
Message format
Subframe1
Subframe_ Page_ Name_ Word_ Bits Scale_ Signed
1 all Week Number 3 1–10 1:1 No
1 all CA or P On L2 3 1112 1:1 No
1 all URA Index 3 13–16 1:1 No
1 all SV_Health 3 17–22 1:1 No
1 all IODC(MSB) 3 2324 1:1 No
1 all L2Pdata flag 4 1 1:1 No
1 all ResW4 4 2–24 N/A N/A
1 all ResW5 5 1–24 N/A N/A
1 all ResW6 6 1–24 N/A N/A
1 all ResW7 7 1–16 N/A N/A
1 all TGD 7 17–24 2^-31 Yes
1 all IODC (LSB) 8 1–8 1:1 No
1 all TOC 8 9–24 2^4 No

Question: What is the ura index scale for the global positioning system for subframe1, message format?

Question: What is the scaling of sv_health of subframe1 message format with word count less than 4 in global positioning system?